Use the scenario to answer the following question. You are presented with an antique dollhouse that contains five light bulbs, a switch, and a 1.5-volt battery. The wires of the circuit are hidden from your view so that you cannot see how the bulbs are connected to the battery. You are able to turn on the lights and they are all working. The switch turns all of them on or off together.
How could you determine the type of circuit used in this model? Select the TWO best answer choices.

A.
If all the bulbs are glowing with equal brightness, it is a series circuit because each bulb in a series circuit has a different resistance.

B.
If all the bulbs are glowing with equal brightness, it is a parallel circuit because each bulb in a parallel circuit has its own path to the battery.

C.
If you unscrew one bulb and all the others stay lit, it is a parallel circuit because each bulb in a parallel circuit has its own path to the battery.

D.
If all the bulbs are glowing with less brightness, it is a parallel circuit because each bulb in a parallel circuit has its own path to the battery.

E.
If you unscrew one bulb and all the others stay lit, it is a series circuit because each bulb in a series circuit has to share the same current.