Razors of all types have been around since prehistoric times in forms such as sharpened clam shells and flint. They have been used to remove hair from the face and other parts of the body. There are three distinct kinds of razors. _______, they can come in straight, safety, or electric forms.
The straight razor with a handle was created in England during in the 18th and 19th centuries. It was the popular way to shave a beard. To shave, most often people went to the barbershop. The razor required a little bit more skill. The straight razor's popularity waned after the introduction of the safety razor. In the early 1900s, King Gillette put a razor blade in a handle so only the sharp area was exposed. This made shaving safer and easier, and the razor was cheap and disposable. The electric razor was introduced by Colonel Jacob Schick. The electric razor allowed for a closer shave than that of the safety razor. Furthermore, it just needs to be plugged in to an electrical outlet or to have batteries.Read the following sentence from the passage.
Furthermore, it just needs to be plugged in to an electrical outlet or to have batteries.
What is the purpose of the linking word Furthermore?
A.
to confirm that the passage is not yet finished
B.
to explain why the razor is so cheap
C.
to signal that more information follows
D.
to show the safety razor lasts very long