What led to the battle of bunker hill? a. the british spotted fortifications by militiamen on breed’s hill. b. the boston massacre created tense unrest throughout the colonies. c. colonists began to launch protests against the quartering act. d. members of the boston militia dumped tea into boston harbor.

The right answer is A) The British spotted fortifications by militiamen on

Breed´s Hill (and Bunker Hill as well). They did this to gain tactical advantage. The American heard of this and went to defend the hills.  

ummm? is that supposed to be a question or a but this is a reason he won re-election

explanation:

"despite progress in the war, lincoln and most political pundits were convinced that he would lose his bid for reelection in 1864. the country was war weary and the democratic party's nominee, george mcclellan, was likely to negotiate a peace treaty with the confederacy if elected." - loc.gov