The Windings of a DC Motor Have a Resistance of 6.00

The windings of a DC motor have a resistance of 6.00 Ω. The motor operates on 120 V AC, and when running at full speed it generates a back emf of 105 V. What is the starting current of the motor?

A) 2.50 A
B) 5.00 A
C) 17.5 A
D) 20.0 A
E) 37.5 A