Two lamps, Green (G) and Red (R) are connected in a motor circuit as shown in the figure. The conditions under which the lamps will burn are, (supply is available at terminals A & B):

A

Green lamp burns always, red lamp burns only when swich S is closed

B

Green and red lamp burns when switch S is closed

C

Green lamp will not burn always, red lamp burns only when switch S is closed

D

Green lamp burns only when S is open and red lamp burns only when S is closed