I am pretty sure this is combination,
It is possible that in time they could find forgiveness in their hearts for their enemies. They would probably never forget but it is possible to forgive.
Look at these details from a paragraph about the same topic:
Helicopters are sometimes used to carry loads of water tha
Ships in the middle of the ocean often receive supplies fron
Helicopters can be used to rescue people in hard-to-reach a
Choose the main idea that ties all the details together.
