Answer:
i think the last one
Explanation:
physical digestion prepares the food for chemical digestion
it makes it easier for the enzymes to break down the food by increasing the surface area as it become in smaller chunks
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).
