The folk songs of Bihar, particularly in the Bhojpuri region, immortalize Veer Kunwar Singh's resistance. Which of the following themes is most prominently highlighted in these folk narratives (such as 'Kunwar Singh Pachasa') regarding his final days?

Options:

• A: His self-amputation of his injured left hand at the Ganges river to prevent gangrene from a British bullet.
• B: His strategic retreat to Nepal to seek military assistance from the Rana dynasty.
• C: His formal alliance with the Mughal Emperor Bahadur Shah Zafar in Delhi.
• D: His establishment of a parallel peasant government in the Santhal Parganas.

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