Correct Option: B

Every six months, the 'Top 500' organization reveals a list of the world's fastest supercomputers. In June 2013, China's Tianhe-2 built by the National University of Defense Technology, ranked at no. 1 or the fastest supercomputer of the world. It is capable of performing 33.86 petaflops (1000 trillion calculation) per second on a benchmarking test. It has stuck to the number one position for the last 18 months.