Ein Mann möchte mit 30 Jahren in Deutschland sein Abitur nachholen. Wo kann er das tun?

A man wants to complete his high school diploma (Abitur) at age 30 in Germany. Where can he do this?

Explanation

The correct answer is "an einem Abendgymnasium." because it matches the German civic, legal, historical, or institutional fact asked in this question, specifically the topic of Abitur Abendgymnasium. The other options do not fit the question correctly.