The correct answer is (d). Sikkim’s main language is Nepali, not Tibetan.
Goa’s main language is Konkani.
Meghalaya’s main languages are Khasi, Garo, and Jaintia.
Nagaland’s main languages are Angami, Ao, Sema, Lotha, Konyak, Chang, and Sumi.
Tibetan is a language spoken by the Tibetan people, who live in Tibet, China, and Bhutan. It is also spoken by some people in Nepal, India, and Myanmar. Tibetan is a member of the Sino-Tibetan language family. It is written in the Tibetan script.
Nepali is a language spoken by the Nepali people, who live in Nepal. It is also spoken by some people in India, Bhutan, and Bangladesh. Nepali is a member of the Indo-Aryan language family. It is written in the Devanagari script.