[单选题]
A 500-W device is connectedzt+wa9 hvy m;ien50a7 to a 120-V ac power souriv:3 a8v1iv-*b6qd iycxzur 7b / z0ryce. What peak current flows throy/3 r8avy zuxbv0cbir :7v6 z -i*iqd1ugh this device?
A. $4.2 \; A$
B. $5.9 \; A$
C. $120 \; A$
D. $170 \; A$
