You purchased an American style call option for $2.40 two weeks ago. The call has a strike price of $55 and the stock is now trading for $58. If you exercise the call today, what will be your holding period return and effective annual return?

Select one:

23.95%; 24,532.57%

25.00%; 32,987.22%

25.95%; 64,384.67%

23.91%; 18,655.15%

None of the above

I can't quite get the EAR, thank you~