91J2 D
 What sequence of ARQ codes matches the following: request establishment of a landline, end radio link after traffic is done, request connection for AMVER messages?
A. NNNN, KKKK, AMV+.
B. KKKK, BRK+, AMV+.
C. BRK+, DIRTLX+, AMV+.
D. DIRTLX, BRK+, AMV+.
