During the second half of the 1970s and early 1980s, the steel industries of the developed world operated with considerable excess capacity. The situation was particularly acute in the UK where, in 1980, effective capacity was some 2.3 times greater than production. Based on the context, what is the given information, A, B, C, or D?(    )
A、the steel industries
B、excess capacity
C、This situation
D、2.3 times greater