While rummaging through the attic, you discover a saving account left to you by your rich Uncle David. When you were 5 years old, he invested $20,000 in your name, at 5% interest compounded semiannually. If you are now 20 years old, how much is the account worth? Select one: O a. $61,951.35 O b. None of these O c. $41,95135 d. $31,951.35 O e. $51,951.35