Respuesta :
C is the answer if not I’m sorry but I came to the conclusion of C being the answer
Answer:
The answer is A. Because it describes better a semiconductor diode
Explanation:
A semiconductor diode is formed of a junction of P dopped material (excess of electrons), with a N dopped material (absence of electrons). Under the correct polarization, the electron flows from one side to another, other way electrons wont flow.