CPATrader

well, I would argue that it's A.

my logic:

It can't be c, or d since intrinsic value is s-k (100). assuming the option isn't at expiration since there's a probability of the option to move up (u) or down (d), then there's time value as well.

Given, price of an option is intrinsic value + time value, then answer should be A. Not sure if time value = 50, but it has to be greater than 0 if the option isn't at expiration.

Disclaimer: I haven't read the options chapter and am not sure if there's a formula to solve this. But, I know my option's logic is correct since price of option = intrinsic value + time value.