What was the name of the three-bodied giant who owned a herd of red cattle on the island of Erytheia, killed by Heracles in his tenth labour?

• A Geryon ✓
• B Cacus
• C Briareus
• D Antaeus

Geryon was a fearsome giant with three bodies joined at the waist who dwelt on the far-western island of Erytheia; Heracles killed him, his herdsman Eurytion, and his two-headed dog Orthrus to steal his cattle.