Aself-governing autonomous state voluntarily united with another nation is a a. territory b. colony c. commonwealth d. confederacy

   C. Commonwealth

Explanation:  Every voluntary union with another nation, with each nation having an independent government, and nothing dependent on the other is a commonwealth. In the translation or in the present sense Commonwealth means public weal. Usually, this term refers to some kind of international cooperation and association of the UK and states that once had a dependent colonial relationship by the UK, which became independent. A colonial relationship involves partial or complete control by another state or its inhabitants.

answer; reincarnation of an eternal soul;