The correct options are
A Common base amplifier
B Common emitter amplifier
C Common collector amplifier
Transistor has three configurations i.e. common base, common emitter and common collector. In all these three configurations, when these output characteristics are drawn, there is an active region in each of the output characteristics drawn. Since the transistor in active region acts as an amplifier. The transistor in any of these three configurations in their active region acts as an amplifier.