I believe it's D. Because you are continuing on from a sentence but you are ending one specific subject
Answer:
It was believed that the President had suffered a heart attack.
Explanation:
A is the answer to this question
If you came from the bustle of a city to a small village in the country, you would notice many things are different. For example, to start with, the pace of life is a lot slower since it is a small place and it doesn't take so long to get from one place to another. There might not be public transit there and but you may be able to get around mostly by walking or a short car ride since it is small in area.People may be more friendly and have more time to talk. There will probably only be a few stores and relatively small in size so the food and merchandise selection probably won't be so good.
