TTACH REQUEST, ATTACH ACCEPT分别包含于哪条空口RRC消息内:（）
A.RRCCONNECTIONREQUEST,RRCCONNECTIONSETUP
B.RRCCONNECTIONSETUP,RRCCONNECTIONSETUPCOMPELTE
C.RRCCONNECTIONSETUPCOMPELTE,RRCCONNECTIONRECONFIGURATION
D.RRCCONNECTIONRECONFIGURATION,RRCCONNECTIONSETUPRECONFIGURATIONCOMPELTE
正确答案是C