Answer:
The correct answer is C) observation of the entity's operations.
Step-by-step explanation:
It is vitally important for the auditor to inspect the facilities of the plant and the offices of the company to be audited, in order to know their location, their operating conditions, the types of products that they distribute, the prevailing controls, etc.
During this phase, the auditor will observe the operations of the organization, emphasizing those of production and / or distribution in order to verify the way in which they are carried out to begin to enter the Internal Control knowledge and plan the methods of evaluation of it.