One way in which the operation of a n-p-n transistor differs from that of a p-n-p

• A

  The emitter junction injects minority carriers into the base region of the p-n-p

• B

  The emitter injects holes into the base of the p-n-p and electrons into the base region of n-p-n

• C

  The emitter injects holes into the base of n-p-n

• D

  The emitter junction is reversed biased in n-p-n