In the Diagram, Q₁ = 9

In the diagram, Q₁ = 9.0 μC and Q₂ = -9.0 μC. If Q₂ has a mass of 3.0 g, a uniform electric field of 1.8 kN/C imposed in the positive y direction would give this particle an acceleration in the y direction of approximately

A) zero.
B) 5.4 m/s².
C) 6.8 cm/s².
D) 4.5 m/s².
E) 7.5 cm/s².