Alex Anderson recently won a lottery and has the option of receiving one of the following three prizes:
(1)   $50,000 cash immediately
(2)   $20,000 cash immediately and a five-period annuity of $8,000 beginning one year from today
(3)   A five-period annuity of $13,000 beginning one year from today
 
Assuming an interest rate of 6%, which option should Alex choose?