A Particle (Charge 7 $\mu$ C)is Released from Rest at a Point on the X

Multiple Choice

A particle (charge 7.5 $\mu$ C) is released from rest at a point on the x axis,x = 10 cm.It begins to move due to the presence of a 2.0- $\mu$ C charge which remains fixed at the origin.What is the kinetic energy of the particle at the instant it passes the point x = 1.0 m?

A) 3.0 J
B) 1.8 J
C) 2.4 J
D) 1.2 J
E) 1.4 J