Megan Is Looking for a Gift for Her Older Brother

Megan is looking for a gift for her older brother who enjoys reading mysteries.A book by one of his favorite authors was recently published and she plans to buy it.However,because she is on a limited budget,she wants to find the lowest price.The most convenient way for Megan to find the best price for the book would be to

A) drive to a large shopping center that is 45 minutes away from home where there are two bookstores (Barnes & Noble and Half-Priced Books) to see which one has the book at the lowest price.
B) call all the bookstores in her community to inquire about the price of the book at each one.
C) use a bot to comb the websites of online booksellers and locate the one with the best price.
D) use a cookie to contact various bookstores and find the one with the best price.
E) create a choiceboard using the Barnes & Noble's Facebook