Which of the Following Statements About the Consumer Buying Decision

Which of the following statements about the consumer buying decision process is true?

A) Consumers progress through the five stages of this process for all limited problem-solving decisions.
B) Although all of the steps in the process are used in all decision processes, the order tends to depend on the customer's level of involvement.
C) The key element of the process that exists in all consumer buying decision processes is the purchase of the product.
D) Once the purchase of a product has been made, the consumer buying decision process is complete.
E) The buying decision process can be affected by situational, social, and psychological influences.