In Order to Determine Brain Efficiency,reaction Times Have Been Measured

Multiple Choice

In order to determine brain efficiency,reaction times have been measured by which of the following techniques?

A) how long it takes people to press a key to make a choice regarding which line segment is longer
B) the amount of time between blinks of the eye when puffs of air make contact with the eye
C) the amount of parasympathetic nervous system activity shown following exposure to a surprise
D) how quickly a person can react to the presence of smoke in a room