Answer:
A is the best choice I think
Common law and juries heralded the very idea of democracy. England was an absolute monarchy and these changes a constitutional and later on democracy. This is because they diminished the power of the monarchy while at the same time giving citizens a chance to have their say and be a part through juries and parliament.
<span> by entering the Korean War without congressional consent.
Hope this helps !
Photon</span>