The diagram shows two circuits.
Which statement correctly describes each circuit?
a
The bulbs in both circuits are connected in series.
b
The bulbs in Circuit 1 are connected in parallel, and the bulbs in Circuit 2 are connected in series.
c
The bulbs in both circuits are connected in parallel.
d
The bulbs in Circuit 1 are connected in series, and the bulbs in Circuit 2 are connected in parallel.
d
The bulbs in Circuit 1 are connected in series, and the bulbs in Circuit 2 are connected in parallel.