Answer: (Detailed Solution Below)
Option C: Jyotiba Phule
Detailed Solution:
The correct answer is “Jyotiba Phule”.
The founder of the Satyashodhak Samaj, which emphasized the seeking of truth, was Jyotiba Phule.
Established in 1873, the organization aimed at social reform, particularly focusing on the upliftment of the lower castes and advocating for women's rights and education.