[单选题]
A bar magnet falls through a loop of wire with the nor ,ddsc3 bh6zm3,v s6fzth pole entering first. zee 38jc 73kaskr +eezk*/v./ b;dfah As the north pole enters the wire8 fc ae * /ehz3az+ksvjek;r.ed7/ kb3, the induced current will be (as viewed from above)
A. zero.
B. clockwise.
C. counterclockwise.
D. to top of loop.
