The Derinkuyu underground city in Cappadocia, a UNESCO-listed historic refuge carved deep into volcanic rock, is estimated to have been able to shelter roughly how many people at once?

• A About 20,000 people ✓
• B About 200 people
• C About 2,000,000 people
• D About 2,000 people

Derinkuyu extends roughly 85 meters underground and could reportedly shelter around 20,000 people along with their livestock and food stores.