What would be the value of $100 after 10 years if you earn 11 percent interest per year?

a.) $259.37
b.) $283.94
c.) 110.46

If the interest is simple interest, then the value is
       100 [ 1 + (10 x 0.11) ]  =  100 (1 + 1.1)  =  100 x 2.1  =  $210 .
If the interest is compound interest, and is compounded annually, then the value is
       100 (1 + 0.11)¹⁰  =  100 (2.8394)  =  $283.94 .

If the interest is compound interest, and is compounded monthly, then the value is
       100 (1 + 0.11/12)¹²⁰  =  100 (2.9891)  =  $298.91 .
So did you make a mistake with the numbers