A. Japan
B. Iran
C. China
D. USA
Explanation:
Iran has unveiled a new supercomputer named ‘Simorgh‘, which is 100 times more powerful than the previous supercomputer of the country to date. The supercomputer has been developed indigenously by Tehran’s Amirkabir University of Technology (AUT). It has been named after a mythical Phoenix-like bird ‘Simurgh‘.