Joanne: An increasing number of online retailers now allow customers to create “wish lists” of items they would like to receive as gifts.

Such lists are certainly useful, but these retailers should also explore other ways to suggest gift purchases for these customers.

In particular, without revealing the specifics of a customer's purchase history, a website could quickly analyze a retailer's entire inventory, select a list of items similar to those the customer has already purchased, and then e-mail that list to a group of contacts specified by the customer.

Such a system would suggest gifts that, because of their similarity to the customer's prior purchases, would be extremely likely to appeal to the customer.

In the argument, Joanne assumes that the hypothetical customers

A. are familiar with most or all of the items in stock on the websites where they shop...........even if they are not familiar it does not matter as they can get familiar of the gift after receiving it. Did not think of while selecting this option.

B. would prefer novel gifts that are unlike the items they currently own............argument considers similar items. this weakens the argument and cannot be assumed.

C. do not use retail websites primarily to purchase gifts............they purchase items and get gifts. true

D. would be relatively unconcerned if their retail purchase histories were available to others.........out of scope since this need not be assumed as its negation will not affect the argument. Even if they are concerned, website as per the argument does the task without revelation of their info.

E. prefer online shopping to shopping in physical retail stores..............preference in comparison does not matter