Which Statement Represents a Bottom-Up Aspect of Gate-Control Theory

Multiple Choice

Which statement represents a bottom-up aspect of gate-control theory?

A) Pain may be gated at the skin receptors by rubbing the injured area.
B) Pain may be suppressed with drugs that mimic endorphin activity.
C) Subjective pain intensity may vary among ethnic groups.
D) The midbrain may send inhibitory signals to the spinal cord that prevent further pain signals from reaching the brain.