During his meditation under the Bodhi tree at Uruvela, Gautama was challenged by Mara, the personification of desire and death. Which mudra (hand gesture) did Buddha use to witness his right to attain enlightenment, calling upon the earth goddess?

Options:

• A: Dharmachakra Mudra
• B: Bhumisparsha Mudra
• C: Abhaya Mudra
• D: Varada Mudra

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