Three Charges Are Located Along the X Axis as Shown

Three charges are located along the x axis as shown in the drawing. The mass of the -1.2 µC is 4.0 × 10^-9 kg. Determine the magnitude and direction of the acceleration of the -1.2 µC charge when it is allowed to move if the other two charges remain fixed.

A) 2 × 10⁵ m/s², to the right
B) 1 × 10⁵ m/s², to the left
C) 7 × 10⁴ m/s², to the right
D) 3 × 10⁵ m/s², to the left
E) 4 × 10⁶ m/s², to the right