The correct answer is: d) All of the above.
Loanwords from Tibetan can be found in Lepcha, Bhutia, and Nepali.
Lepcha is a Sino-Tibetan language spoken by the Lepcha people of Sikkim, India, and Bhutan. It is closely related to Bhutia, which is spoken by the Bhutia people of Sikkim, India, and Bhutan. Nepali is an Indo-Aryan language spoken by the Nepali people of Nepal. It is the official language of Nepal and is also spoken in India, Bhutan, and Bangladesh.
Loanwords from Tibetan are found in all three of these languages. For example, the Lepcha word for “house” is “khang”, which is borrowed from Tibetan. The Bhutia word for “mountain” is “ri”, which is also borrowed from Tibetan. The Nepali word for “king” is “raja”, which is also borrowed from Tibetan.
The presence of loanwords from Tibetan in Lepcha, Bhutia, and Nepali is evidence of the historical and cultural connections between these languages and Tibetan.