Task: Question Answering
Input (English): Question: 3, k, 20, m, 4, n
In the list above, k, m, and n are three distinct positive integers and the average (arithmetic mean) of the six numbers in the list is 8. If the median of the list is 6.5, which of the following CANNOT be the value of k, m, or n ?

 Option A: 9

 Option B: 8

 Option C: 7

 Option D: 6

 Option E: 5
Output (English): Option E