Correct Option: C

The McMahon Line is a line agreed to by Britain and Tibet as part of the Shimla Accord, a treaty signed in 1914. It is the effective boundary between China and India, although its legal status is disputed by the Chinese government. The line is named after Sir Henry McMahon, foreign secretary of the British-run Government of India and the chief negotiator of the convention. It extends for 550 miles (890 km) from Bhutan in the west to 160 miles (260 km) east of the great bend of the Brahmaputra River in the east, largely along the crest of the Himalayas. The McMahon Line is regarded by India as the legal national border. It is disputed by China. As recently as 2003, the Dalai Lama said that the disputed region was part of Tibet, but he reversed his position in 2008, acknowledging the legitimacy of the McMahon Line and the Indian claim to the region.