In which country did nationalist groups work to unite several independent kingdoms into a single nation-state during the mid-19th century ? a. russia b. japanc. china d. italy

Option D.

Explanation:

Italy, is the right answer.

In the mid 19th century, there emerged a political and social movement in Italy that unified a number of states of the Italian peninsula into the unique state of the Kingdom of Italy. This movement began in the year 1815 with the inauguration of Congress of Vienna and came to an end in the year 1871 when Rome became the capital of Italy.

answer; i believe the two groups were irish immigrants and chinese immigrants;