Explanation
To implement split valuation, you must do the following:
Customize valuation categories and valuation types, which are the key elements of split valuation. A valuation category defines the criteria for splitting the valuation of a material, such as origin or quality.
A valuation type is a subdivision of a valuation category that represents a specific stock type, such as country of origin A or B. You can customize valuation categories and valuation types in Customizing under Materials Management -> Valuation and Account Assignment -> Split Valuation -> Configure Split Valuation.
Create additional accounting data for the relevant materials, which means that you must maintain the valuation data for each valuation type at valuation-area level. The valuation data includes the valuation price, total stock quantity, and total stock value for each valuation type. You can create additional accounting data for the relevant materials in the material master under Accounting 1 view.
References: Split Valuation in Inventory Management | SAP Help Portal

Explanation
When you post a goods receipt to stock with reference to a purchase order, you can perform the following actions:
Post a goods receipt for part of the order quantity, which means that you can receive multiple partial deliveries for the same purchase order item.
Split the quantity received to multiple storage locations, which means that you can distribute the goods receipt quantity among different places where materials are physically stored within a plant.
Post the quantity received to quality inspection stock, which means that the materials are subject to a quality inspection before they can be used or sold. References: [SAP S/4HANA Sourcing and Procurement | SAP Learning], Course S4510, Unit 2, Lesson 1.

Explanation
The quota base quantity is the total quantity of a material that is to be procured over a certain period of time from various sources of supply. The quota arrangement specifies how this quantity is to be distributed among the sources of supply. If a new supplier is added to an existing quota arrangement, the quota base quantity must be updated to reflect the new situation. This way, the new supplier will be considered as if they had been part of the quota arrangement from the beginning. The other options do not ensure this, as they only affect the existing sources of supply or the source list.References: [SAP Help Portal], [SAP Community]

Explanation
The stock determination strategy is a set of rules that defines how the system selects a suitable stock for a material requirement. To use a stock determination strategy for a material in management, some prerequisites are needed. First, a stock determination rule must be assigned to the business transaction in Customizing. This rule specifies which stock types and special stocks are allowed for the transaction. Second, a stock determination rule must be customized and assigned to the storage type. This rule defines the sequence in which the system searches for available stock within the storage type. Third, a cross-application strategy for stock determination must be customized. This strategy determines how the system selects a storage location and a batch for the material requirement. The other options are not prerequisites, as they are optional or not related to the stock determination strategy.References: [SAP Help Portal], [SAP Community]

Explanation
You maintain the purchasing value key in the material master at plant level. The purchasing value keycontains parameters that influence the purchasing process for a material, such as order unit, rounding value, minimum order quantity, and delivery tolerance. References: SAP S/4HANA Sourcing and Procurement | SAP Learning, Course S4520, Unit 3, Lesson 2.