Tran's Brother, Who Shares a Room with Him, Told Him

Multiple Choice

Tran's brother, who shares a room with him, told him that he can hear Tran grinding his teeth a night. The condition that Tran suffers from is called

A) bruxism.
B) insomnia.
C) resting jaw motion disorder.
D) periodontal tightness.
E) muscle tension.