Which two countries reunited in 1976 after 22 years of separation?

Question: Which two countries reunited in 1976 after 22 years of separation?

Options:

North and South Yemen
Serbia and Montenegro
Czech Republic and Slovakia
North and South Vietnam

Correct answer:

North and South Vietnam

Other game answers: Logos Pop Quiz Answers, 100 Cartoon Quiz answers, 2 Pics 1 Phrase Word Answers.