Answer:
They both share the same context and clues which you can use to find out how they are simialer
C is the answer you are looking for
The simple subject would definitely be "Many" because these "Many" are the people do something, which leads us to the predicate. The simple predicate would be "were sent" or "sent" because that is what the "Many" were doing (technically they were forced).
I mean id assume birth rate
why would the population in an area increase if a person dies or moves out it would only decrease
so id be birth rate
