胰头癌所致黄疸

A．波动较大
B．进行性加重
C．开始有波动，以后又加重
D．持续性黄疸
E．发生快而逐渐消退

The meaning of the sentence is（）; you can interpret it in several ways.

A．skeptical

B．intelligible

C．ambiguous

D．exclusive