David Is Shopping for Tires for His Audi

Multiple Choice

David is shopping for tires for his Audi.He looks in the yellow pages of the local phone book and calls Costco,Sam's club,Sears and a local car repair shop.In his decision-making process,David is using:

A) marketing-controlled information sources
B) demographic information sources
C) nonmarketing-controlled information sources
D) secondary data sources
E) internal search sources