You have a choice when subscribing to our magazine: you can a. pay $100 now for a four-year subscription, b. pay $28 at the beginning of each year for four years, or c. pay $54 today and $54 again two...

You have a choice when subscribing to our magazine: you can
a. pay $100 now for a four-year subscription,
b. pay $28 at the beginning of each year for four years, or
c. pay $54 today and $54 again two years from today.
Which is the best deal for you, the subscriber, if your opportunity cost of funds is 10%?