With reference to the admission process and academic standards of Nalanda Mahavihara as described by Xuanzang, consider the following statements: 1. The admission to Nalanda was highly selective, managed by a specialized officer called the 'Dvarapandita' (gatekeeper-scholar) who tested candidates orally. 2. Xuanzang states that the majority of foreign and domestic aspirants failed the entrance test, with only about two or three out of ten gaining admission. 3. The medium of instruction and academic debates at Nalanda was strictly Sanskrit, which was the language of the intellectual elite of that era. Which of the statements given above are correct?

Options:

• A: 1 and 2 only
• B: 2 and 3 only
• C: 1 and 3 only
• D: 1, 2 and 3

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