A Router with a BRI／T interface will be used for an ISDN Connection what other ISDN device is required to complete this connection? （）

A、a～g
B、h～n
C、s～u
D、a～u

A. 容易引发各类犯罪
B. 对人的身体造成严重损害
C. 败坏社会风气
D. 极易导致家庭破裂