Which title best completes the diagram? O The Nullification Crisis
O Causes of the civil war
O Key Events Of The Civil War
O Individual Rights During The Civil War

the 1 st one is correct one

Explanation:

in my view nullification is one of the issue of USA

so The Nullificatin crisis could be correct

hope it can be helpful

can we get more information?

explanation:

it is the dominance of   the spanish language and roman catholic region in mexico, french being the official language of several african countries, and the existence of a western-style government in south asian countries