In a transistor output characteristic commonly used in common emitter configuration, the base current $I_{B}$, the collector current $I_{C}$, and the collector-emitter voltage $V_{CE}$ have values of the following orders of magnitude in the active region:

• A
  $I_{B}$ and $I_{C}$ both are in $\mu A$ and $V_{CE}$ in volt
• B
  $I_{B}$ is in $\mu A$ and $I_{C}$ is in $mA$ and $V_{CE}$ in volt
• C
  $I_{B}$ is in $mA$ and $I_{C}$ is in $\mu A$ and $V_{CE}$ in $mV$
• D
  $I_{B}$ is in $mA$ and $I_{C}$ is in $mA$ and $V_{CE}$ in $mV$