【单选题】

Which of the following, according to the passage, contribute(s) to alcoholism

Ⅰ. the need to reduce tensions and anxieties
Ⅱ. the anxieties resulting from guilt feelings about previous drinking bouts
Ⅲ. punishment for alcoholic behavior
A．Ⅰ only
B．Ⅰ and Ⅱ only
C．Ⅰ,Ⅱ, and Ⅲ
D．Ⅱ and Ⅲ only