Consider the following situation: You have a call option on a non-dividend paying stock, Intel, with X = 100 and T t = 3 months, and currently S(t) = 105. The simple interest rate between now and option maturity is 1%, i.e., $1 invested today (time t) at the risk-free rate will be worth $1(1.01) = $1.01 at the option maturity (time T). If you know the stock price is going to fall. Should you (early-) exercise the option now and take your profits (sell the stock), or should you wait and have the option expire worthless? Please explain.