Extremely Low-Incidence Studies,such as Trying to Survey the Automobile Buyer

Extremely low-incidence studies,such as trying to survey the automobile buyer characteristics of astronauts,are usually not feasible.A marketing research firm concerned about the feasibility of such a project would probably:

A) see if the information already exists.
B) first conduct a pilot survey.
C) conduct a focus group.
D) determine whether or not the question can be answered.
E) all of these