Any episode in which the guest forms an impression or mental note of your service or product may be termed?

This question is incomplete, here´s the complete question

Any episode in which the guest forms an impression or mental note of your service or product may be termed?

a moment of truth

an instant of perception

a psychological footprint

none of the above is correct

a moment of truth

Explanation:

In marketing, a moment of truth refers to each time a customer gets the opportunity to form or change his opinion about a business, brand, service, or product. It usually happens when the customer interacts with the product or service. However, the way a customer is greeted, or how his complains are handled, may also provide a moment of truth.

there has only been 12 presidents. the 12th president is/was moon jae-in