ThinkGeek Is an Online Retailer That Caters to Computer Enthusiasts

ThinkGeek is an online retailer that caters to computer enthusiasts and other "geeky" social groups.Their merchandise includes clothing,electronic and scientific gadgets,unusual computer peripherals,office toys,pet toys,child toys,and caffeinated drinks and candy.ThinkGeek runs a points-for-reward system called Geek Points,under which customers can earn rewards for buying more products.This is an example of segmentation by:

A) demographic
B) benefit
C) aggregate
D) economic
E) usage-rate