If there is a good source of water and shelter.
Answer:
Pressure form the water depth makes the sediment compact.
Explanation:
Oceanic crust is more dense than continental crust, and that is due to the compact sediment.
I would say the answer is D.
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.
