Explanation:

- Option 2: Aurobindo Ghosh – Aurobindo Ghosh was indeed the first principal of Bengal National College, which was established in 1906 during the Indian freedom movement to promote nationalist education.

- Option 1: Ras Behari Bose – He was an Indian revolutionary, known for his role in the movement against British rule, but not connected to the Bengal National College's headship.

- Option 3: S.N. Banerjee – Surendranath Banerjee was a prominent nationalist leader and co-founder of the Indian National Association but had no direct role as the head of Bengal National College.

- Option 4: R.N. Tagore – Rabindranath Tagore was a Nobel laureate poet and a key figure in Indian cultural renaissance, yet he did not head the Bengal National College.