Izara built a fence for her horses. The fence was 210 feet long. She put a fence post in the ground at the start of the fence and another fence post every 3 12 feet. Izara paid $8.50 for each fence post. 
 How much did Izara pay for all the fence posts she used? 
 A. $297.50 
 B. $518.50 
 C. $595.00 
 D. $765.00