According to the accounts of the Chinese traveler Xuanzang (Hiuen Tsang), how did the Gupta Emperor Narasimhagupta Baladitya deal with the captured Huna tyrant Mihiragula?

Options:

• A: He ordered his immediate execution in public to avenge the destruction of Buddhist monasteries.
• B: Influenced by Buddhist principles of non-violence and his mother's intervention, he spared Mihiragula's life and allowed him to retreat to Kashmir.
• C: He imprisoned him for life in the Nalanda monastery to convert him to Buddhism.
• D: He entered into a matrimonial alliance with him, marrying his daughter to Mihiragula's son to secure the northern borders.

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