Harry Goes to the Local Staples Store to Purchase a Laptop

Harry goes to the local Staples store to purchase a laptop computer.He asks the salesclerk many questions,compares various models on display,and decides on the Sony Vaio.The salesperson then recommends to Harry that he should purchase an extended warranty service contract for the computer.This is an example of _____ selling.

A) inquiry
B) formula
C) method
D) suggestive
E) need-satisfaction