World’s most advanced ground-based observatory Thirty Metre Telescope (TMT) is coming up in ___?
[C]Azores Island
[D]New Zealand

Construction of the world’s largest optical telescope by a five-nation consortium including India is expected to start next year with Indian scientists making a significant contribution in developing its key components. The Thirty Metre Telescope (TMT), dubbed as the world’s most advanced ground-based observatory, will be built at the summit of Mauna Kea volcano in Hawaii at a cost of $1.2 billion.