A call option with a strike price of 100 and expiration date in 3 months:

A. Requires that you buy the stock at 100 in 3 months

B. Gives you the option to buy the stock at 100 in 3 months

C. Gives you the option to sell the stock at 100 in 3 months

D. Costs 100 and gives you the option to buy the stock at the spot price in 3 months