Correct option is C
The Thirty Meter Telescope (TMT) is a collaboration between five countries: India, China, Japan, the United States, and Canada. It is an advanced astronomical observatory that is being constructed in Hawaii, on Mauna Kea. Once completed, the TMT will be the world’s largest telescope, with a 30-meter primary mirror designed to observe celestial objects with unprecedented clarity. This observatory will contribute significantly to the study of planets, stars, galaxies, and black holes, and will be capable of investigating the most distant objects in the universe. India's contribution to the project involves providing critical engineering components, including mirrors and software systems.