Imagine that a food critic visits your restaurant and writes a positive review that was then published in a magazine. This is an example of.

a is correct

Public relations

Explanation:

Public relations -

It is the method to spread within an organisation or in society, is referred to as public relations.

The act can be done by an individual or organisation, expect in that particular field.

This method is adapted in order to freely advertise or publicize the goods or service.

Hence, from the given scenario of the question,

the correct term is public relations.