What is the english channel?
a. an extension of the atlantic ocean between england and france
b. a landmass that connects ireland to the united kingdom
c. a long, narrow ocean inlet that passes between high and rocky banks or steep cliffs
d. a waterway that connects the pacific and atlantic oceans

The English Channel is the body of water between England (Great Britain) and France, it is connected to the Atlantic Ocean.

Being a body of water, it can't be a water way - so the answer b) is false.

In fact, from the description above you know that the answer a. an extension of the Atlantic Ocean between England and France is true.

Don’t use up to much of them it leads to pollution