Task: Question Answering
Input (English): Question: 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?

 Option A: $400

 Option B: $440

 Option C: $720

 Option D: $800

 Option E: $820
Output (English): Option E