What happens to the current through the battery if a third bulb is added in series

Two light bulbs are wired in SERIES and connected to a 12 volt battery. What happens to the current through the battery if a third bulb is added in SERIES? To the power?

1. increase, decreases
2. both increase
3. decreases, increase
4 both decrease

Please explain you answer. Thank You!!

All the bulbs would be dimmer (both decrease) because they are having to share the electricity between 3 of them, rather than two.
Think of it as this:
A boy has 6 sweets(electricity) and he gives half to his friend (the second bulb) then another friend (third bulb) comes along and he has to give a third to each, so they all end up with 2 sweets.
Hope it helps!

4, both decrease.
The current falls because there is more circuit resistance.
Because the circuit current falls, but the voltage remains the same, the power dissipated also falls.
Power in watts = (voltage x current).