Who called Subhash Chandra Bose as Desh Nayak ?

Correct option is B

The correct answer is Rabindranath Tagore.
Rabindranath Tagore called Subhash Chandra Bose Desh Nayak, a term that translates to "Hero of the Nation." Tagore, a Nobel laureate and a towering figure in Indian literature and music, bestowed this title on Bose in recognition of his leadership and contribution to the Indian freedom movement. Bose's efforts towards India's independence, including forming the Azad Hind Fauj (Indian National Army), were highly influential and earned him great admiration and respect, including from Tagore.
The title "Desh Nayak" encapsulated Bose's dynamic role as a catalyst for change, embodying the spirit of resistance and the aspiration for freedom that defined the era. Tagore's gesture of naming Bose thus was emblematic of the cultural endorsement of his strategies and objectives. It bridged the intellectual and revolutionary domains of the freedom movement, illustrating the collective endeavor of India's sons and daughters to achieve self-rule.
Information Booster:
• Lala Lajpat Rai, Mahatma Gandhi, and Bal Gangadhar Tilak were other prominent leaders in the Indian freedom struggle, each contributing in their unique way to the cause.
• Lala Lajpat Rai was part of the Lal Bal Pal triumvirate and is known for his role in the Non-Cooperation Movement.
• Mahatma Gandhi led India to independence through non-violent civil disobedience.
• Bal Gangadhar Tilak was known for his slogan "Swaraj is my birthright, and I shall have it" and played a pivotal role in building the Indian National Movement.