Consider an n-p-n transistor with its base-emitter junction forward biased and collector-base junction reverse biased. Which of the following statements are true?
 

a. Electrons crossover from emitter to collector
b. Holes move from base to collector
c. Electrons move from emitter to base
d. Electrons from the emitter move out of the base without going to the collector.

1. (a, d)

2. (a, c)

3. (b, c)

4. (c, d)