.A challenge that Italy faced after unification was

It faced political along with economic, social, and religious conflicts. The French and Austrian occupation in the North and Spanish in the South touched the lives of the Italian people, making the process of unification a very difficult one.

Explanation:

division between the north and south (the north was richer and had more cities), there was hostility between Italy and Roman catholic church.

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answer; (d) i believe that the correct answer is americans finally ran out of ammunition;