[单选题]
The primary of a transfa56 xkk1 p.;d+qgo0 f*xvhwje ormer has 100 turns an9l0fi+1 rfpynd its secondary has 200 turns. If the input current at the primary if0i 9+ nlyp1rfs 100 A, we can expect the output current at the secondary to be
A. 50 A.
B. 100 A.
C. 200 A.
D. none of the given answers
