Who Do Door-To-Door Scam Artists in the Home Repair Industry

Who do door-to-door scam artists in the home repair industry target and why?

A) The elderly because they are home during the day and are more vulnerable.
B) Women because they are more vulnerable and know less about home repairs.
C) The wealthy because they are less likely to shop around for the best prices.
D) The poor because they are more likely to jump at what they think is a good deal.