Please show your work for calculating each of the present values.

Suppose you have just won the lottery and must choose one of the following (guaranteed) payoffs. Which one would you choose? The interest rate is 7%; ignore tax consequences.

A. $100,000 paid today B. $140,000 paid five years from today C. $50,000 paid one year from today and $68,000 paid four years from today D. $14,000 paid per year for ten years, with the first year's payment made today