Welches Gericht in Deutschland ist zuständig für die Auslegung des Grundgesetzes?

Why this is the correct answer

Germany's Basic Law is the supreme legal document of the country, and interpreting it is the exclusive responsibility of the Federal Constitutional Court (Bundesverfassungsgericht) based in Karlsruhe. Other courts, such as courts of appeal or administrative courts, deal with different areas of law but do not have authority to rule on constitutional questions.