Task: Question Answering
Input (English): Question: A student took five papers in an examination, where the full marks were the same for each paper. His marks in these papers were in the proportion of 5 : 6 : 7 : 8 : 9. In all papers together, the candidate obtained 60% of the total marks. Then the number of papers in which he got more than 50% marks is

 Option A: 2

 Option B: 3

 Option C: 4

 Option D: 5

 Option E: 1
Output (English): Option D