Hadley wants to purchase a fitness tracker. She is unsure about what type will best suit her needs and work best with other products she owns. As a result, she has begun asking for advice from her friends and relatives. In addition, she has talked to several salespeople at Apple and Best Buy and has looked at some online reviews. Hadley is engaging in
A) problem recognition.
B) an internal search.
C) an external search.
D) a purchase task.
E) the creation of an antecedent state.