This is a question about geography. A "strait" (not "straight") is a narrow body of water that acts as a passageway between one larger body and another. In your shoes I would look up "Constantinople location" on the Internet.
Answer: Strait of Bosphorus.
Answer:
Ypres became a focal point of the campaign due to its geographic location and importance as a transportation hub. In October, German forces launched a major offensive that aimed to push forward to the Channel ports of Dunkirk and Calais. To achieve these objectives it was necessary to take Ypres.
Explanation:
Yes they join the American revolution and help them win.
The best explanation why the area between Spain and Gaul was not part of the Roman empire until that later period was a culmination from both undesireability and difficulty in accessing this region due to its mountaineous nature. So I would wager the answer being both C and D - undesireability and difficulty in access.
Answer:
part 1:
Britain enforced unfair taxes on the colonists.
part 2:c