Explanation:

Roster: A roster is a list or schedule of people or things that are organized in a particular order or sequence.

Duty: Duty refers to a task or responsibility that someone is required or expected to do.

Inventory: Inventory refers to a detailed list of items or goods that are available in stock or held by a person or business.

Goods: Goods refer to products or items that are produced or manufactured to be sold or used.

Comparison:

The relationship between "roster" and "duty" is that a roster is a list of people or things organized in a particular order, while duty refers to the tasks or responsibilities that are assigned to those people or things.

Similarly, the relationship between "inventory" and "goods" is that inventory is a detailed list of items or goods that are available, while goods refer to the actual products or items that are being listed in the inventory.

Analogy:

The analogy can be understood as follows:

Just as a roster is a list of people or things organized in a particular order, duty is the task or responsibility assigned to those people or things.

Similarly, just as inventory is a detailed list of items or goods, goods are the actual products or items that are being listed in the inventory.

Answer:

Therefore, the correct answer to the analogy "Roster : Duty : : Inventory : ?" is "Goods" because "goods" are the items or products that are listed in the inventory, just as duty is the task or responsibility assigned to the items or people listed in the roster.