The following question, consist of two words each that have a certain relationship to each other, followed by four lettered pairs of words. Select the lettered pair that has the same relationship as the original pair of words:
Gun : Trigger

A. Kick : Pain

B. Lamp : Switch

C. Chair : Arm

D. Engine : Fuel

Answer: Option B

Solution(By Examveda Team)

One needs to move/press the second to make the first work.