Consider the following statements: 1. Charvaka was the main expounder of this philosophy. 2. The philosophy is materialistic in nature. 3. It showed lack of belief in other world and denied the existence of the supernatural agency. Which of the following philosophy does the above statements refer to? 

Charvaka was the main expounder of the materialistic philosophy. This philosophy came to be known as the Lokayata, which means the ideas derived from common people. • It underlined the importance of intimate contact with the world (loka), and showed lack of belief in the other world. • He opposed to the quest for spiritual salvation. He denied the existence of any divine or supernatural agency. He accepted the existence/reality of only those things which could be experienced by human senses and organs. This implied a clear lack of faith in the existence of brahma and God. Hence option (c) is the correct answer.