To answer this question, we need to understand the context of the epic Mahabharata.
In the Bhagavad Gita, which is a part of the Mahabharata, Arjuna is faced with a moral dilemma on the battlefield of Kurukshetra. He is reluctant to fight against his own relatives, friends, and teachers. At that moment, Lord Krishna, who is his charioteer and guide, reveals his divine form or Vishwaroopa to Arjuna.
Option A) Lord Maha Vishnu and Goddess Lakshmi on Adi Sesha - This option is incorrect because Arjuna did not witness Lord Vishnu and Goddess Lakshmi on Adi Sesha.
Option B) Yam Lok or the world of the dead - This option is incorrect because Arjuna did not witness the world of the dead.
Option C) Lord Shiva and Goddess Parvati in Kailash - This option is incorrect because Arjuna did not witness Lord Shiva and Goddess Parvati in Kailash.
Option D) Lord Krishna's Vishwaroopa or divine form - This option is correct because Arjuna beheld Lord Krishna's Vishwaroopa, which is described in the eleventh chapter of the Bhagavad Gita. It is after witnessing this divine sight that Arjuna takes up his arms against the Kurus.
The correct answer is D) Lord Krishna's Vishwaroopa or divine form. This option is correct because Arjuna took up his arms against the Kurus after witnessing Lord Krishna's Vishwaroopa.