In a common emitter transistor, the current gain is 80. What is the change in collector, when the change in base current is 250 $\mathrm{\mu A}$

• A

  $80\times 250 \mathrm{\mu A}$

• B

  $\left(250-80\right) \mathrm{\mu A}$

• C

  $(250+80) \mathrm{\mu A}$

• D

  $250/80 \mathrm{\mu A}$