Patient 5 years old with denture has a severe gag reflex, upon history he says he had the same symptoms in the first few days of the denture delivery and it went all alone

Patient 5 years old with denture has a severe gag reflex, upon history he says he had the same symptoms in the first few days of the denture delivery and it went all alone:

A. patient has severe gag reflex

B. patient has underlying systemic condition

c. Denture is overextended. ***