Guardian Angel Personal Alcohol Allows People to Check Their Own

Guardian Angel Personal Alcohol allows people to check their own blood alcohol levels by licking a chemically treated paper strip. When it was first introduced to the market, police in several states distributed the strips to motorists over one Labor Day weekend. It was most likely believed that the distribution of the new product would trigger which stage of the buying-decision process?

A) evaluation alternatives
B) information search
C) need recognition
D) postpurchase behavior
E) alternative identification