The correct answer is option 2: He believed in universal education.

Kandukuri Viresalingam was a prominent social reformer in India during the 19th century. He strongly advocated for universal education, believing that education should be accessible to all, regardless of caste, gender or social status. Viresalingam believed that education was a means to empower individuals and society as a whole. He understood that by providing education to everyone, society would progress and evolve.

Option 1 is incorrect. Viresalingam did not believe that science and morality were unconnected to truth. In fact, he believed in the importance of scientific reasoning as well as moral values in education.

Option 3 is incorrect. Viresalingam did not believe that language had no role in inculcating morality in students. On the contrary, he recognized the importance of language in shaping moral values and believed in the power of literature to teach ethics and virtues.

Option 4 is also incorrect. Viresalingam actively worked towards building a national consciousness on a cultural base. He promoted the values of unity, nationalism, and cultural identity among the people of India.

Therefore, the correct answer is option 2: He believed in universal education.