Pls help me if your good at history I’ll mark brainliest <3

How did the united states respond when north vietnam attacked a us warship and sent troops to south vietnam in the early 1960s? a.the united states declined to assist south vietnam against the north. b.us leaders authorized south vietnam to invade north vietnam. c.the president did not sign the gulf of tonkin resolution. d.congress authorized the president to escalate the conflict.

The annexation of bosnia and herzegovina by austria-hungary in 1908 caused serious bitterness between serbia and austria-hungary.

What country gained its independence from france shortly after the french revolution as a result of a slave rebellion