With so much warfare and enemies holding dangerous acts against it. America needs to look strong and stable enough to keep the barrier of the state of mind that "if you test us, it's the wrong move, we are a strong nation". No country would like to seem weak especially when it comes to enemies.
<span>— That to secure these rights, Governments are instituted among Men, deriving their just powers from the consent of the governed, — That whenever any Form of Government becomes destructive of these ends, it is the Right of the People to alter or to abolish it, and to institute new Government</span>
A c and d I think i hope it helps
Mostly because people want their independence