The correct answer is: B. Sino – Tibetan
Ladakhi is a Sino-Tibetan language spoken by about 500,000 people in Ladakh, a region in the Indian state of Jammu and Kashmir. It is closely related to Tibetan and other Sino-Tibetan languages spoken in the Himalayas.
Indo-Aryan languages are a branch of the Indo-European language family. They are spoken by about 2.5 billion people in South Asia, Central Asia, and the Middle East. Some of the most well-known Indo-Aryan languages are Hindi, Urdu, Bengali, Punjabi, and Marathi.
Indo-European languages are a family of languages that are spoken by about 3 billion people in Europe, Asia, and North America. Some of the most well-known Indo-European languages are English, Spanish, French, German, Russian, and Portuguese.
None of these is the correct answer.