a) United States
b) Tibet
c) Italy
d) Japan
China is building the world’s highest-altitude cloud computing data centre in Tibet that will meet the data storage needs of the country and South Asian nations like Nepal, Bangladesh and Pakistan. The data centre is located in a high-tech zone of the Tibetan regional capital city of Lhasa located at an altitude of around 3,656 metres, making it the highest-altitude data centre in the world, state-run Xinhua news agency reported.