An investor bought a 1-year $8,000 certificate of deposit that paid interest at an annual rate of 10 percent compounded semiannually. What was the total amount of interest paid on this certificate at maturity?	Choose the correct choice from the following:
A) $400	B) $440	C) $720	D) $800	E) $820
1.05*1.05*8000= 
<gadget id="calculator">1.05*1.05*8000</gadget>
<output>8_820</output>
$8820   The answer is $820.
<result>E</result>
An investor bought a 1-year $8,000 certificate of deposit that paid interest at an annual rate of 10 percent compounded semiannually. What was the total amount of interest paid on this certificate at maturity?