Tanner Is Sitting in the Audience When an Uncontrollable Urge

Multiple Choice

Tanner is sitting in the audience when an uncontrollable urge to stand up and sing 'Oh Canada' after the person on stage said the word 'thank you'.He doesn't understand why he is singing,but the audience is finding his song to be hilarious.Most likely,Tanner is

A) dreaming.
B) meditating.
C) under the influence of LSD.
D) responding to a hypnotist's suggestions.