Billy, the CEO of Movin on Up Company, Was Granted

Billy, the CEO of Movin On Up Company, was granted stock options with an exercise price of $55.00 per share. The following are the week-ending stock prices that occurred during the quarter: If Movin On Up engaged in the practice of backdating, which of the following is the most likely exercise price for Billy's options?

A) $65.52
B) $67.50
C) $65.00
D) $56.82