题目内容：
According to Paragraph 2, the USPS fails to modernize itself due to
A．the interference from interest groups. A．the interference from interest groups.
B．the inadequate funding from Congress.
B．the inadequate funding from Congress.
C．the shrinking demand for postal service.
C．the shrinking demand for postal service.
D．the in competence of postal unions.
D．the incompetence of postal unions.
参考答案：
答案解析：