I’m pretty sure the answer is A but if you already ruled that out try B
The answer to this question would be: frequency
The higher intensity of the stimulus, the higher frequency of the action potential will be sent. The nerve can't send a higher action potential, so it firing at higher at higher intensity instead. So when you felt an intense pain, that means the pain receptor is firing more stimulus per second compared to low or mild pain.
The trait perspective focuses primarily on describing
individual differences. The trait approach emphasizes the difference in traits
per individual. Traits are known to be constant or stable description of
individuals for a period of time. The trait approach sees the interaction of
traits among other personalities.
It sends an impulse back to the cell body of a neuron