Catherine Was Delighted with the New Spring Apparel at American

Catherine was delighted with the new spring apparel at American Eagle.The sales associate greeted her when she entered the store,showed her the new spring arrivals,then stayed with her throughout her shopping experience bringing her additional items while Catherine was in the dressing room.This sales service can best be described as ______.

A) standardization services
B) individualized retailing
C) micro marketing
D) personalized retailing
E) personalized service