The group young italy formed because italians were unhappy about
unrest and rebellions.
the spread of nationalism.
the new king of sardinia.
rule by foreign nations.

The correct answer is D. Rule by foreign nations

Explanation:

"Young Italy" was a political group and movement that began in 1831 founded by the Italian politician Giuseppe Mazzini in Marseille with the purpose of making Italy an independent country by unifying the territory, because during this historical period Italy was divided into multiple states and besides this some of the Italian territories were ruled by the Austrian Empire, which made Italy being ruled by different leaders and influenced by multiple nations situation that caused  different conflicts in the Italian population. Therefore, the group Youn Italy was mainly formed because Italians were unhappy about the rule by foreign nations.