34. In the energy band diagram of a material shown below, the open circles and filled circles denote holes and electrons respectively. The material is ?

34. In the energy band diagram of a material shown below, the open circles and filled circles denote holes and electrons respectively. The material is ?

(a) an insulator

(b) a metal

(c) an n-type semiconductor

(d) a p-type semiconductor

Answer :  (d) a p-type semiconductor