A Circular Loop of Radius R Has 50 Turns $\pi$ AR² Sin

A circular loop of radius R has 50 turns. It lies in the xy plane. A time dependent magnetic field where A is a constant, passes through the loop. The EMF induced in the loop is

A) 50 $\pi$ AR² sin ( $\omega$ t)
B) 50 $\pi$ AR² cos ( $\omega$ t)
C) 50 $\pi$ $\omega$ AR² sin ( $\omega$ t)
D) 50 $\pi$ $\omega$ AR² cos ( $\omega$ t)
E) None of these is correct.