Instructions Full Game: These are multiple-choice quizzes with four possible answer choices that include all questions in a given set.     
What present-day nation has been led by:

Emperor Hirohito (1926-1989)
Emperor Akihito (1989-2019)
Prime Minister Shinzō Abe (2006-2007 and 2012-Present)
Emperor Naruhito (2019-Present)
Iceland
Cambodia
Vietnam
Japan