price of a call option

a. What is the 2-year forward price for a 1-year bond?
b. What is the price of a call option that expires in 2 years, giving you the right to pay $0.90 to buy a bond expiring in 1 year?
c. What is the price of an otherwise identical put?
d. What is the price of an interest rate caplet that provides an 11% (effective annual rate) cap on 1-year borrowing 2 years from now?