Which of the Following Is the Best Explanation of How

Which of the following is the best explanation of how a stimulus' strength is transmitted to the central nervous system from sensory nerves?

A) More than one type of receptor will respond to larger stimulus.
B) An action potential will increase in strength as stimulus's strength increases.
C) Action potential frequency is increased as stimulus' strength increases.
D) Action potentials as well as graded potentials are sent to the central nervous system when stimulus strength increases.