Mr. Yamakari owns a CALL option on stock from Caledonia Mining Corporation (CMCL). He paid $2.70 per share for the option at a strike price of $15.00. What price does the stock need to reach in order for Mr. Yamakari to exercise his option (buy the shares) then sell to the market at a net profit? Group of answer choices below $ 12.30 below $ 17.70 above $ 12.30 above $ 17.70