In the following figure A, B and C are parallel conductors carrying currents I, I and 2I respectively. Distance between A and B is 1 m and the distance between B and C is also 1 m. $F_1$ is the force exerted by B on A and $F_2$ is the force exerted by C on A. Choose the correct answer.

$F_1=-F_2$

The correct answer is Option (2) → $F_1=-F_2$