Which one of the operations of $n-p-n$ transistor differs from that of $p-n-p$ transistor?

  • A
    The emitter-base junction is reverse biased in $n-p-n$ transistor.
  • B
    The emitter injects minority carriers into the base region of the $p-n-p$ transistor.
  • C
    The emitter injects holes into the base of the $p-n-p$ transistor and electrons into the base region of $n-p-n$ transistor.
  • D
    The emitter injects holes into the base of $n-p-n$ transistor.

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