Task: Question Answering
Input (English): Question: here's an easy question of averages, but let's try to see innovative ways of solving this.
A class has 12 boys and x girls. Average score of boys and girls is 81 and 92 respectively. the average of the whole class is 86, what is the value of x?

 Option A: a

 Option B: b

 Option C: c

 Option D: d

 Option E: e
Output (English): Option D