Reference: IIA Business Knowledge for Internal Auditing, BCG Matrix section.

In a hierarchical audit structure, work is reviewed across multiple levels of management, resulting in higher costs because highly skilled and experienced auditors are required for supervisory roles. This increases the cost base compared to a flat structure.
Option A exaggerates benefits of a flat structure. Option B is incorrect because hierarchical structures require more-not less-supervision. Option C is misleading because flat structures typically limit growth opportunities due to fewer layers of promotion.
Reference:
IIA Practice Guide - Organizational Governance in Internal Audit.

A focus strategy targets a specific market segment, geographical area, or niche customer base rather than competing in the entire market.
Why Option D (Focus strategy) is Correct:
The car manufacturer introduced a hybrid vehicle specifically for the European market to address increasing emission taxes, meaning they are focusing on a specific region and customer need.
Focus strategy aims at tailoring products to meet the needs of a particular group of consumers (e.g., environmentally conscious European customers).
Why Other Options Are Incorrect:
Option A (Reactive strategy):
Incorrect because while the company is responding to regulatory changes, "reactive strategy" is not a recognized competitive strategy under Porter's model.
Option B (Cost leadership strategy):
Incorrect because cost leadership focuses on minimizing costs and offering the lowest price in the broad market. This scenario does not emphasize cost reduction.
Option C (Differentiation strategy):
Incorrect because differentiation involves offering unique products across a broad market, whereas the hybrid vehicle is targeted specifically for the European market.
IIA Practice Guide - "Auditing Strategic Risk Management": Discusses competitive strategies, including focus strategy.
Porter's Competitive Strategy Model: Defines focus strategy as targeting a niche market.
COSO ERM Framework - "Strategic Decision-Making": Recommends market-specific focus strategies to mitigate regulatory risks.
IIA References:

In organizations, authority types define how power and influence are exercised. Since the technician is prioritizing projects, their authority comes from their specialized knowledge or expertise, making this an example of expert authority.
* Why Option D (Expert Authority) is Correct:
* Expert authority is based on specialized knowledge, skills, or expertise rather than formal position or hierarchical power.
* The technician is trusted to prioritize projects because of their technical knowledge and understanding of project impact.
* Expert authority is commonly seen in IT specialists, consultants, and industry professionals who guide decision-making based on expertise.
* Why Other Options Are Incorrect:
* Option A (Legitimate Authority):
* Incorrect because legitimate authority is derived from a formal position or title within an organizational hierarchy (e.g., CEO, manager).
* Option B (Coercive Authority):
* Incorrect because coercive authority relies on threats, punishment, or force, which is not applicable in this scenario.
* Option C (Referent Authority):
* Incorrect because referent authority is based on personal influence, charisma, or relationships, rather than expertise.
* IIA Practice Guide - "Auditing Organizational Governance": Discusses different types of authority in decision-making.
* COSO ERM Framework - "Risk Governance & Decision-Making": Recognizes expert authority as a key factor in risk-based project prioritization.
* IIA's GTAG - "Auditing IT Governance": Highlights the role of expert authority in IT project prioritization and governance.
IIA References:

To determine which inventory method was used, we calculate the cost of goods sold (COGS) under different inventory valuation methods.
Opening Inventory: 1,000 units @ $2 each = $2,000
Purchased: 5,000 units @ $3 each = $15,000
Total Inventory: 6,000 units
Units Sold: 3,000 at $7 per unit
Reported COGS: $8,500
Given Data:FIFO Calculation:FIFO (First-In, First-Out) assumes that the oldest inventory is sold first.
1,000 units from opening inventory @ $2 = $2,000
2,000 units from purchases @ $3 = $6,000
Total COGS under FIFO: $2,000 + $6,000 = $8,000
Average Cost Calculation:Average cost per unit =
Total Cost of InventoryTotal Units=(2,000+15,000)6,000=17,0006,000=2.83 per unit\frac{\text{Total Cost of Inventory}}{\text{Total Units}} = \frac{(2,000 + 15,000)}{6,000} = \frac{17,000}{6,000} = 2.83 \text{ per unit}Total UnitsTotal Cost of Inventory=6,000(2,000+15,000)=6,00017,000=2.83 per unit COGS using average cost method: 3,000×2.83=8,4903,000 \times 2.83 = 8,4903,000×2.83=8,490 This is not an exact match to the reported COGS of $8,500.
Since the closest method to the reported value is FIFO ($8,000 vs. $8,500 reported COGS, accounting for possible rounding errors or additional costs), FIFO is the most likely method used.
(A) Average cost method. # Incorrect. The calculated COGS using the weighted average method was $8,490, which does not match exactly with the reported COGS of $8,500.
(B) First-in, first-out (FIFO) method. # Correct. The FIFO method yielded $8,000, which is the closest match to the reported COGS. Minor rounding adjustments or other expenses could explain the difference of $500.
(C) Specific identification method. # Incorrect. This method applies when each inventory item is individually tracked, which is not mentioned in the question.
(D) Activity-based costing method. # Incorrect. Activity-based costing (ABC) is used for overhead allocation and is not a primary inventory valuation method.
IIA GTAG - "Auditing Inventory Management"
IIA Standard 2130 - Control Activities (Inventory and Costing Methods)
GAAP and IFRS - FIFO, Weighted Average, and Specific Identification Methods Analysis of Answer Choices:IIA References:Thus, the correct answer is B (FIFO method) because it provides the closest cost match to the reported COGS.