Currently, about how much world’s goods trade (by volume) is carried on ships?

Currently, about how much world’s goods trade (by volume) is carried on ships?A. 20%
B. 60%
C. 80%
D. None of these

Maritime transport is the backbone of international trade and the global economy. Around 80 per cent of global trade by volume and over 70 per cent of global trade by value are carried by sea and are handled by ports worldwide.