Which of the Following Is True for a Typical Active

Which of the following is true for a typical active region of an npn transistor?

A) the potential difference between the emitter and the collector is less than 0.5 v
B) the potential difference between the emitter and the collector is less than 0.4 v
C) the potential difference between the emitter and the collector is less than 0.3 v
D) the potential difference between the emitter and the collector is less than 0.2 v