According to the Hardware Asset Management page, the ham_admin role grants the user the following permissions:
Create, read, update, and delete hardware asset records
Import hardware assets from external sources
Revert normalization results for hardware assets
Add hardware assets to the Service Catalog
These permissions correspond to the options A, B, E, and F in the question.
The options C and D are not part of the ham_admin role, and are not mentioned in the ServiceNow Hardware Asset Management documents. References:
Hardware Asset Management
Hardware Asset Management roles and permissions

* A configuration item (CI) is a record that represents an IT asset or service in the Configuration Management Database (CMDB)1.
* A CI tracks the operational and relationship information of the asset or service, such as its current status, location, owner, and dependencies1.
* A hardware asset is a physical component of an IT system, such as a laptop, server, or router2.
* A hardware asset attribute is a property or characteristic of the hardware asset, such as its model, serial number, or warranty2.
* Some hardware asset attributes are also part of the CI, such as IP address, CPU, operating system, and memory1. These attributes reflect the operational state of the hardware asset and are relevant for configuration management purposes1.
* However, some hardware asset attributes are not part of the CI, such as cost2. Cost is a financial information of the hardware asset that is tracked by the Asset Management application2. Cost is not relevant for configuration management purposes and is not stored in the CMDB2.
* Therefore, the hardware asset attribute that should be tracked that is not part of the CI is C.
Cost. References:
* 1: Configuration Item
* 2: Hardware Asset Management

* According to the ServiceNow Product Documentation on Stock Rules1, stock rules are records that define the conditions and actions for replenishing the stock of assets in a stockroom when they drop below a specified threshold1.
* According to the ServiceNow GlideFast blog post on Stock Rules in ServiceNow2, when creating a stock rule that replenishes from a vendor, the primary requirement for the warehouse stockroom is that it must have an assigned manager and the manager must have a valid email address2.
* The reason for this requirement is that the stock rule will generate a purchase order for the procurement of additional assets from the vendor, and the purchase order will be sent to the stockroom manager's email address for approval2.
* The other options are not primary requirements for the warehouse stockroom when creating a stock rule that replenishes from a vendor. The stockroom does not need to have an assignment group, a valid mobile phone, or a valid time zone for the stock rule to work.
References:
* 1: ServiceNow Product Documentation: Stock Rules
* 2: Stock Rules in ServiceNow - GlideFast ServiceNow

According to the ServiceNow Hardware Asset Management documentation, the ServiceNow Content Service is a cloud-based service that provides content updates for hardware models, such as manufacturer, model category, and lifecycle information. The ServiceNow Content Service also collects unrecognized data from customers, such as new or custom hardware models, to improve the content quality and coverage. Customers can opt out of sending unrecognized data to the ServiceNow Content Service for specific models, but this will also prevent them from receiving content updates for those models.

* According to the Hardware Asset Management documentation, an asset audit is a process of verifying the physical existence and location of assets in an organization.
* The asset audit results show the status of each scanned asset, such as "Scanned and expected",
"Scanned and not expected", "Expected and not scanned", or "Not expected and not scanned".
* The status of "Scanned and expected" means that the asset was both expected to be in the inventory and scanned during the audit, indicating a match between the physical and the logical inventory.
* Therefore, if you receive the result of 10 "Scanned and expected" assets, it means that you expected 10 assets in your inventory and scanned these 10 assets during your audit, as stated in option B. References:
* Hardware Asset Management documentation
* What is Hardware Asset Management?