In the 1970s, the first Western School was established by

The correct answer is: A. Lamdon Social Welfare Society

The Lamdon Social Welfare Society was founded in 1972 by a group of Ladakhis who were concerned about the lack of educational opportunities for their children. The society established the first Western-style school in Ladakh, the Lamdon School, in 1974. The school has since grown to become one of the leading schools in Ladakh, offering a high-quality education to students from all over the region.

The other options are incorrect:

• King Hari Singh was the Maharaja of Jammu and Kashmir from 1925 to 1953. He did not establish any Western schools in Ladakh.
• The Morarian Mission is a Protestant Christian missionary organization that was founded in 1832. It has no connection to the establishment of Western schools in Ladakh.
• None of the above is the correct answer.