I'm not 100% sure but i do believe germany helped start the war by there political takeover done by hitler and the nazi's, so i would say A would be the best answer seeing as it would be the only type of take over suggested here. Hope this helps!
<span>The site of a major French military defeat in 1954 in Vietnam; French pulled out of Indo China; other countries from the West had to take a stand on Communism in Vietnam</span>