The Light Bulb Experiment

In the next video you can see that now a second red light bulb is added to the circuit. The red light bulb has the same position in the circuit as the bird has on the voltage line. Now, what will happen to the two light bulbs?

You might find help in this circuit diagrams:

a) Only the white light bulb will glow.

b) Both light bulbs will glow as strongly as the single one in the first experiment.

c) The white light bulb will glow as strongly as the red one, but both will glow weaker than the light bulb in the first experiment.