ATTACH REQUEST, ATTACH ACCEPT分别包含于哪条空口RRC消息内（）
A.RRC CONNECTION SETUP COMPELTE,RRC CONNECTION RECONFIGURATION
B.RRC CONNECTION RECONFIGURATION, RRC CONNECTION SETUP RECONFIGURATION COMPELTE
C.RRC CONNECTION REQUEST, RRC CONNECTION SETUP
D.RRC CONNECTION SETUP, RRC CONNECTION SETUP COMPELTE
正确答案是A