Concept:In a p-type semiconductor, impurity atoms are added to increase the number of positive charge carriers called holes.
Explanation:A p-type semiconductor is formed by doping a pure semiconductor with trivalent atoms.
These trivalent impurities have only three valence electrons.
They create extra holes in the crystal structure.
Holes are the majority charge carriers in a p-type semiconductor.
Free electrons are present only in small numbers, so they are the minority charge carriers.
Holes carry positive charge, so they determine the electrical behaviour of the material.
Therefore, the correct statement is that holes are the majority charge carriers.
Answer:Option D: holes are the majority charge carriers.