Why are holes the majority charge carriers in p-type semiconductors?

In a p-type semiconductor, holes are the majority charge carriers because of the process of doping with specific impurity atoms.12

When a semiconductor like silicon is doped with trivalent atoms—such as boron—the dopant atom has only three electrons available for bonding, whereas the surrounding silicon atoms require four to complete their covalent bonds. To form these four bonds, the boron atom accepts an electron from the surrounding crystal structure, which leaves behind a vacancy in the valence band.123

This vacancy is known as a hole, which acts as a mobile, positively charged carrier. Because each added acceptor atom creates such a deficiency, the material ends up with a significantly higher concentration of holes compared to free electrons, making holes the majority charge carriers.1234