Why Would a Store Like the Button Emporium Selling Only

Why would a store like The Button Emporium selling only buttons be best located in Toronto?

A) More people in Ontario use sewing as a hobby, making it more actionable.
B) The market is easier to identify because of the diversity.
C) Toronto is a large city and can support the retailing mix of the store.
D) A retailer like this locates itself where there are designers who will patronize the shop.
E) None of the statements answer the question.