You are an auditor observing the counting of the client's inventory with a new assistant. The assistant has a number of questions concerning inventory and the observation of inventory. Please reply Yes or No and provide your rationale. Note: Repeating the question is not a valid rationale (Example of a wrong rationale: No, auditors don't need to count all items in the inventory). Questions:

a. Is it correct that our observation addresses the existence of inventory, and not the completeness of the count?

b. Do I need to count all items in the inventory?

c. Should I count the items present as "consigned in"?