The charge carriers in a p-type semiconductor are: 

Concept:

Semiconductor: A semiconductor material has an electrical conductivity value falling between that of a conductor, such as metallic copper, and an insulator, such as glass. Its resistivity falls as its temperature rises; metals behave in the opposite way.

Extrinsic semiconductors are semiconductors that are doped with specific impurities. The impurity modifies the electrical properties of the semiconductor and makes it more suitable for electronic devices such as diodes and transistors

p-type semiconductor has following characteristics:

• A p-type semiconductor is an intrinsic semiconductor doped with boron or indium.

• The majority of carriers in p-type semiconductors are holes.

• Electrons are minority carriers in a p-type semiconductor.

• In a p-type semiconductor, the hole density is much greater than the electron density.

• The acceptor energy level of the p-type is close to the valency bond and away from the conduction band.

• In an n-type semiconductor an intrinsic semiconductor doped with phosphorus or antimony as impurity.

n-type semiconductor has following characteristics:

• The majority of charge carriers in n-type semiconductors are electrons.

• Holes are minority carriers in a n type semiconductor.

• In the n type of semiconductor, the electron density is much greater than the hole density.

• The donor energy level of n-type is close to the conduction band and away from the valency band.

Hence, the correct answer is Option-3-large number of holes and a small number of electrons.