What is a classic marketing exercise that is used to declare that one’s own food or drink product is superior to the market leader?

Blind taste test

Explanation:

As the name suggests the blind taste test is the test i.e. taken for tasting the food having blindfold where you are not aware of which brand of food you are tasting. You can judge by tasting it

So here in the given situation, if the own food or the drink product is declared so it would become superior to the leader of the market. This case would applied in the blind taste test

Therefore the same is to be considered

answer; read and consider the content of the items;

it's d. out with the planting and harvest of the crops.