In the condition known as Hairy Tongue, which type of papillae undergoes abnormal enlargement?

Explanation

Hairy Tongue is characterized by the overgrowth and elongation of the filiform papillae on the tongue's surface, giving it a hairy appearance. Other papillae such as fungiform, circumvallate, and foliate papillae, as well as taste buds, are not involved in this enlargement.