Please show your work, so I know how to do it. Thank you.

A5 (Computing Exercise Values) You have a weird aunt who will give you one of the following options. They expire today, and each is an option on 100 shares. Compute the following?

A.A put option on Dell. The strike price is $30, and the stock price is $27.

B.A call option on GE. The strike price is $37.50, and the stock price is $32.60.

C.A call option on Tyco. The strike price is $40, and the stock price is $23.30.

D.A put option on Citi group. The strike price is $50, and the stock price is $45.85.