During the formation of a p-n junction –

During the formation of a p-n junction –

(A) electrons diffuse from p-region into n-region and holes diffuse from n-region into p-region.
(B) both electrons and holes diffuse from n-region into p-region.
(C) electrons diffuse from n-region into p-region and holes diffuse from p-region into n-region.
(D) both electrons and holes diffuse from p-region into n-region.

Ans. the correct statement is:

(C) Electrons diffuse from the n-region into the p-region, and holes diffuse from the p-region into the n-region.