[单选题]
The windings of a DCqu t -dy3r7s)v/h -ubvj5;wn8y(zoy q motor ha9c vtgw 535iqxve a resistance of 6.00 W. 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. $17.5 \; A$
C. $20.0 \; A$
D. $37.5 \; A$
