In the electric circuit to the right, light bulbs are placed at A, B and C. When the switch is closed, all three light bulbs are lit. When bulb B burns out what will happen to bulbs A and C?
Bulb A will go out, but bulb C will stay lit
Bulb C will go out, but bulb A will stay lit
Both bulbs A and C will stay lit
Both bulbs A and C will go out