This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Nervous System, Subject name: Physiology
True about Generator potential 
Select and explain. 
A. Not graded, B. Magnitude increased in direct proportion to strength of stimulus, C. All or none Phenomenon, D. Propagated
B: Magnitude increased in direct proportion to strength of stimulus
Answer: B: Magnitude increased in direct proportion to strength of stimulus 
Explanation: Ans. (b) Magnitude increased in direct proportion to strength of stimulus(Ref: Ganong, 25th ed/p.90)Local Potential/Generator PotentialAction PotentialCan be depolarizing or hyperpolarizingAlways depolarizingNo threshold valueDepolarization to threshold is a must for action potential to occurAmount of depolarization or hyperpolarization depends on intensity of stimulusAll or None - All stimuli that exceed threshold produce identical action potentialsEffect decreases with distance from stimulation siteNon decremental. Always propagating