Which of the following is most consistent with the proposition that consciousness is a physiological function?

A) Consumption of a placebo pill changes our vision.
B) Damage to the brain can alter our self-awareness.
C) Inhalation of certain gases renders us aware of the environment.
D) Our awareness levels change with our emotional states.
E) Consciousness is similar across organisms with very different brain structures.

Answer: B
Rationale: The proposition that consciousness is a physiological function is consistent with the fact that damage to the brain can alter our self-awareness.