15. What needs to be done to this circuit so that the lamp light up?
A Close the switch
B. Add another wire
C. Add another butb or lamo
D. Add a ballery and close the swich
![15 What Needs To Be Done To This Circuit So That The Lamp Light UpA Close The SwitchB Add Another WireC Add Another Butb Or LamoD Add A Ballery And Close The Sw class=](https://ph-static.z-dn.net/files/dae/0fdaea03a96d4ebaf49bd9ce8c374655.jpg)