Objective: Cutting wire for extension cord.

Which of the following solutions is more sound in terms of naive physics reasoning?

Choose your answer from:
(a). Measure the amount of cord your will need leaving a few extra feet, then cut the cable to the desired length using wire scissors.
(b). Measure the amount of cord your will need leaving a few extra feet, then cut the cable to the desired length using wire cutters.
(b).