The correct answer is option C) Jotiba Phule.

Explanation:
Tatvabodhini Sabha was a prominent organization in 19th century Bengal which played a significant role in the social and cultural awakening of the region. It was established in 1839 by Debendranath Tagore with the aim of promoting education, intellectual discourse, and social reforms. The Sabha attracted several independent thinkers and social reformers who actively participated in its activities.

Let's analyze the given options:

a) Ishwar Chandra Vidyasagar:
Ishwar Chandra Vidyasagar was a renowned social reformer, educator, and writer during the 19th century in Bengal. He played a pivotal role in the upliftment of women's rights and education. Vidyasagar was closely associated with the Tatvabodhini Sabha and actively participated in its activities. Therefore, he was a member of the Sabha.

b) A.K. Dutt:
A.K. Dutt, also known as Ananda K. Coomaraswamy, was a prominent art historian, philosopher, and curator. He was born in Sri Lanka and later moved to India. While Dutt made significant contributions to the fields of art and culture, there is no evidence to suggest that he was a member of the Tatvabodhini Sabha.

c) Jotiba Phule:
Jotiba Phule, also known as Mahatma Jyotirao Phule, was a social reformer, thinker, and activist who worked tirelessly towards the upliftment of the lower castes and women in Maharashtra, particularly in the context of education. Phule's efforts were focused on eradicating caste-based discrimination and promoting equality. While he was a contemporary of the Tatvabodhini Sabha, there is no historical evidence to suggest that he was a member of the organization.

In conclusion, among the given options, Jotiba Phule was not a member of the Tatvabodhini Sabha. Ishwar Chandra Vidyasagar, on the other hand, was closely associated with the Sabha and actively participated in its activities. A.K. Dutt's association with the Sabha is not documented.