Task: Question Answering
Input (English): Question: If (A-B-C+D = 13) and (A+B-C-D = 3), what is the value of (B-D)^2?

 Option A: 4.

 Option B: 8.

 Option C: 12.

 Option D: 25.

 Option E: 64.
Output (English): Option D