[单选题]
14.01: An FM radio sjie *r cuqf (c2ap6w:9tation sen+ xmszw/02x7jnyu 0i bds a signal with a frequency of $99.99 \times 10^6 \; Hz$. Which one of the following choices best represents this frequency expressed using metric prefixes?
A. 99.99 kHz
B. 99.99 MHz
C. 99.99 GHz
D. 99.99 THz
E. 99.99 nHz