In ancient India, scholars had no interest in political power or material growth.

Answer: Option C

Material : denoting or consisting of physical objects rather than the mind or spirit.
Celestial : positioned in or relating to the sky, or outer space as observed in astronomy.
Psychic : relating to or denoting faculties or phenomena that are apparently inexplicable by natural laws, especially involving telepathy or clairvoyance.
Spiritual : relating to or affecting the human spirit or soul as opposed to material or physical things.
Internal : of or situated on the inside.

Antonym of Material is Spiritual