Mythical ancient island civilization supposedly destroyed by a volcano.

• A. Lemuria
• B. Mu
• C. Atlantis
• D. Shangri-La

Answer: (C)

The idea being tested is recognizing a famous lost civilization tied to a sudden, catastrophic destruction of an island. Atlantis fits this description best. In the enduring myth, Atlantis is a powerful island civilization that is wiped out by a sudden catastrophe—often described as a volcanic eruption or other overwhelming disaster that causes the island to sink beneath the sea. This association with a dramatic, island-ending catastrophe is what people most commonly recall about Atlantis.

Lemuria and Mu are imagined as sunken continents, not a specific island civilization described as destroyed by volcanic forces in a canonical story. Shangri-La, meanwhile, is a fictional utopia, not a lost island civilization doomed by volcanic destruction.