The magnetic field of an electromagnetic wave in a certain region obeys the relation $B = 10^{-12} \sin(5 \times 10^6 t) \text{ T}$,where $t$ is the time. Then,the induced emf in a coil of $300$ turns and area $20 \text{ cm}^2$,oriented perpendicular to the field,is:

• A
  $-2 \times 10^{-5} \cos(5 \times 10^6 t) \text{ V}$
• B
  $-3 \times 10^{-6} \cos(5 \times 10^6 t) \text{ V}$
• C
  $-2.5 \times 10^{-6} \cos(5 \times 10^6 t) \text{ V}$
• D
  $-3.3 \times 10^{-6} \cos(5 \times 10^6 t) \text{ V}$