In the 19th and 20th century, many Southeast Asian countries
suffered colonial domination by European powers. Thailand was the only
Southeast Asian state to escape colonial rule. The British and French decided
the country to be neutral territory and it remained independent.
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.
Answer:
Well most transform boundaries are found on the sea floor, so I will have to say the second one.
Explanation: