Answer:
Letter a is correct. Acceptable range of prices for any purchase situation.
Explanation:
The purchase decision process is a systematic model that represents the rational or irrational steps a consumer goes through before making a purchase. These steps are related to solving needs, searching for information, evaluating similar alternatives, and post-purchase behavior.
The zone of acceptance is a step regarding the price range that the consumer is willing to pay for a particular product or service, and is influenced by each step of the consumer's buying decision.