Boston Symphony Orchestra Realized the Classic Music Market Was Generally

Boston Symphony Orchestra realized the classic music market was generally becoming older and needed to learn how to appeal to younger concert-goers.It hired a research agency to identify the positive and negative attributes of going to concerts.One type of research conducted by the agency was to interview former symphony season ticket holders who were no longer attending the concerts.In other words,the agency used:

A) Complaint solicitation
B) Critical incidents studies
C) Relationship survey
D) Trailer calls
E) Lost customer research