Slovakia became an independent nation in 1993 when it split with the hapsburg monarchy hungary the czech republic the soviet union

Slovakia became an independent nation when it split with the Czech Republic in 1993.

Option C

Explanation:

The split was a self-determined one and Czechoslovakia split into two independent countries. The main reason of the split was the ethnic differences between the two nations.

In addition, the success of communism in Czech Republic and the failure of it in Slovakia also led to the split. Czech Republic was also dominant in terms of contribution to the economy and other factors that led to the split.