Question

what is the purpose of comparison shopping? ensuring you are not buying out of emotion attempting to find the best deal on a product determining whether you truly need a product reading reviews to make sure a product is good

Explanation:

Comparison shopping involves looking at different sellers and offers for a product. Its main goal is to get the best price and value, which means finding the best deal on a product. While the other options can be aspects of shopping - related considerations, they are not the main purpose of comparison shopping.

Answer:

attempting to find the best deal on a product