Correct Answer: Gautama

Solution : The correct answer is Gautama.

Gautama, who is also known as the author of the Nyaya Sutra, is said to have developed this school of thought. According to the Nyaya Sutra, there are four ways to gain valid knowledge: perception, inference, comparison, and verbal testimony. The school claims that a human being can check the validity of a proposition or statement using logical techniques such as inference, listening, and analogy.