A Positive Charge of 94 $\mu$ N

Multiple Choice

A positive charge of 94.0 nC is 12.0 cm from a negative charge of 53.0 nC.The force on one of the charges due to the other is approximately

A) 1.13 mN
B) 0.373 mN
C) 3.11 mN
D) 1.25 mN
E) 1.02 $\mu$ N