Which country has successfully test-fired its new S-500 air defence missile systems?
A. India
B. China
C. Russia
D. Israel
Explanation:
Russia has successfully test-fired its new S-500 air defence missile systems at a southern training range and hit a high-speed ballistic target. The S-500, which is expected to have a maximum firing range of 600 kilometres, is the most advanced anti-missile system in the world and is capable of countering attacks from space.