Offering a Nearly Limitless Selection Results in an Interesting Phenomenon

Offering a nearly limitless selection results in an interesting phenomenon where:

A) customers are willing to pay more for inferior goods.
B) more money is made selling obscure goods than popular ones.
C) firms with physical storefronts are more profitable than pure-plays.
D) it is less profitable to sell physical products than otherwise.
E) maintenance overheads are slashed contrary to conventional wisdom.