[单选题]
An ideal transformer hnlf3 cp+ r+ye7as 60 turns on is(nw0f rfpgoxekx701jc(6/ f s-i+ lz ts primary coil and 300 turns on its secondary coil. If 120 V at 2.0 A is apppz (1clxogf/sresfx60n +wj0 7- fi(k lied to the primary, what current is present in the secondary?
A. $0.40 \; A$
B. $2.0 \; A$
C. $4.0 \; A$
D. $10 \; A$