Answer:
True
Explanation:
You can limit what information is shown to the public, but you can't lie
The answer is C, the US successfully tested an atomic bomb.
P. (probably D.) It limited the powers of government through check and balances.
On Wikipedia it says, "The new Constitution provided for a much stronger federal government by establishing a chief executive (the President), courts, and taxing powers." The constitution contained the checks and balances system, and this textual evidence is describing it. I cross checked this with other sources, so it is reliable.