Answer: Information search
Explanation:
Information search stage is the level in the process of Consumer decision that permits the customer to search and identify the information on external and internal basis.Internal search is thinking in mind etc and external search can regard with visiting stores, media advertisements etc.
According to the situation described in question,Jennifer is at the stage of information search.She is taking advice from her friend for buying coat as well as seeing advertisements of coat sale and visiting stores. Thus, she is using external search and internal search.