A riding stable charges $150 per month to board a horse plus $6.75 per bale of hay that the horse eats. What is the maximum number of hay bales that Shiloh eats in a month if his monthly boarding cost is at least $225.00 and at most $255.00? Round your answer to the nearest whole bale that satisfies the inequality.

A 12 bales
B 11 bales
C 16 bales
D 15 bales