ATTACHREQUEST，ATTACHACCEPT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