i think its either c or a but im not entirely sure but i hope this helps you a little more then nothing.
Legislature can override a presidential veto by 2/3 house and senate
The causes of the Civil War and its cost to a young nation. More from Wes about the causes of the Civil War. ... A common explanation is that the Civil War was fought over the moral issue of slavery. In fact, it was the economics of slavery and political control of that system that was central to the conflict.
<span>Britain heard that the colonists were going to rebel, Parliament sent redcoats to the colonies, Colonists were angry and an altercation broke out between colonists and the soldiers, Redcoats killed 5 colonists, colonists intensified boycotts, Parliament repealed Townshend Acts.</span>
They were able to unite because the Persian invasion of Greek mainland was a common threat for all, so they united to stop it. This was impossible before because Persia was not considered to be such a major threat.
