One of the major ways in which events in England affected the New England colonies' development was that they constantly needed to pay for wars, meaning that they had to heavily tax the colonists, which led to revolts.
The Geneva Accords resulted in the division of Vietnam into two countries.
This question is a bit tricky, but I believe it is the answer on the bottom left. The other answers don't make quite as much sense as that one.
"Chocolate is a now sweet treat that is very popular in the United States."
It implies that chocolate wasn't always a sweet treat in the first section of the question, but if you pay close attention; it says that it "always hasn't been" a sweet treat, that use of word choice would mean it is now a sweet treat.
That's why I'd choose the one on the bottom left.