Which is NOT an advantage of a series circuit?

a
They are circuits so that if one section of the circuit fails, the whole circuit fails.
b
They are simple and are less likely to overheat.
c
They are able to have additional power sources easily added to them.
d
They do not require a complicated pattern of wires to create.

a - They are circuits so that if one section of the circuit fails, the whole circuit fails.

c

They are able to have additional power sources easily added to them.