Force on Parallel Wires: the Figure Shows Three Long, Parallel

Force on parallel wires: The figure shows three long, parallel current-carrying wires. The magnitudes of the currents are equal and their directions are indicated in the figure. Which of the arrows drawn near the wire carrying current 1 correctly indicates the direction of the magnetic force acting on that wire?

A) A
B) B
C) C
D) D
E) The magnetic force on current 1 is equal to zero.