Checks and Balances is the answer you may be looking for.
Answer:you live in south carolina?
Explanation:
1)when the explorers travel they have something to look at
2)they can do some historical research on them
3)that they had some attacks and the fort was used as a defend its position
These are some that you could use i strongly suggest you use the third one
Hope this helps:)
The answer is most likely C.