What monastic peninsula in Macedonia, officially an autonomous polity, has banned women from entering for over a thousand years?

• A Mount Athos ✓
• B Meteora
• C Sinai
• D Patmos

Mount Athos (Agion Oros) is an autonomous monastic state under Greek sovereignty, home to 20 Orthodox monasteries; the ban on women (avaton) has been enforced since the 9th century by imperial decree.