Which of the Following Is Not a Good or Beneficial

Which of the following is not a good or beneficial form of pain?

A) A chronic backache, that remains constant for months
B) The sharp sense of pain as we bite our tongue while eagerly chewing our food
C) A sudden temporary pain in a muscle as we try to lift a heavy object
D) The sense of burning heat as our hand gets too near to the burner on the stove