ATTACH REQUEST，ATTACH ACCEPT分别包含于哪条空口RRC消息内（）

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 REQUEST,RRC CONNECTION SETUP

C.RRC CONNECTION RECONFIGURATION,RRC CONNECTION SETUP RECONFIGURATION COMPELTE

D.RRC CONNECTION SETUP,RRC CONNECTION SETUP COMPELTE

正确答案是A