In relation to the yield curve, which of the following statements is correct?

A、Expectations theory suggests that deferred consumption requires increased compensation as maturity increases
B、An inverted yield curve can be caused by government action to increase its long-term borrowing
C、A kink (discontinuity) in the normal yield curve can be due to differing yields in different market segments
D、Basis risk can cause the corporate yield curve to rise more steeply than the government yield curve