物理電磁學

Two parallel current carrying wires with current flowing in the same direction attrach each other, whereas two current flowing in opposite direction repel each other.

Current in X and Y are in same direction, so Y is pushed towards X. Current in Y and Z are in opposite direction, so Y is repeled by Z towards the left.

With X attracts Y towards the left and Z repels Y towards the left. The answer is clearly option A