Task: Question Answering
Input (English): Question: A man has $ 10,000 to invest. he invest $4,000 at 5% and $3500 at 4%. In order to have ayearly incom of $500, he must invest the remainder at:

 Option A: 6%

 Option B: 5.4%

 Option C: 6.1%

 Option D: 4.4%

 Option E: 6.4%
Output (English): Option E