The true statement would be"They believed in a system of checks and balances."
The Federalists wanted a strong, central government, so the first option would be incorrect. Also, they didn't fear the presidency would become too powerful, making the third option incorrect. The last option is incorrect because the Federalists supported the ratification of Constitution as they noticed the weaknesses of the Articles.
Hope this helps! :)
The answer will most likely be C. A fort, because there would be a possibility that a air bomb would strike a castle as its target.
The Greeks. Please let me know if I'm wrong :)