[单选题]
The windings of a DC motu* d.t80 tpdvm-7caxi tom7u 3or have a resistance of 6.00 W. Th,pc5 plzxnzfd 3+ y.t8e 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. $37.5 \; A$
