Question: Which of the following, Coiba or Nalanda, was an acclaimed "Mahavihara", a large Buddhist monastery in the ancient kingdom of Magadha ?
Sentence (from "Anuradhapura Maha Viharaya"): It was founded by king Devanampiya Tissa of Anuradhapura (247–207 BCE) in his capital city of Anuradhapura.
Relevant evidence: No