Task: Question Answering
Input (English): Question: an operation * is defined by the equation:
a*b=a-b/a+b, for all numbers a and b such that a is not equal to -b, if a is not equal to -q and a*q=0, then q=?

 Option A: a

 Option B: b

 Option C: c

 Option D: d

 Option E: e
Output (English): Option E