Which is not an effective question for launching a historical inquiry related to the US Civil War?

Explanation:

Which is not an effective question for launching a historical inquiry related to the US Civil War?

where is the

  the common sense as a pamphlet written by thomas paine. it promoted the independence of the colonies from british rule. the distribution of this pamphlet was great, it reached people everywhere and it was even read aloud at places people met. it also unite the colonists before the revolutionary war.

answer is d