Edward,the Leading Salesperson for Harry's Honda Dealership,began Hearing Customers Asking

Edward,the leading salesperson for Harry's Honda dealership,began hearing customers asking for hybrid automobiles several years ago.Edward alerted Harry,and Harry preordered many Honda hybrids before they became available.In this case,the source of need recognition was

A) trade show demonstrations.
B) ads in trade journals.
C) customers.
D) the Internet.
E) suppliers.