单项选择题

根据RFC2328,关于一台运行OSPF的路由器从初始到与邻居形成邻接关系的过程描述正确的是()

A.Down,Init,2-way,Exchang,Exstart.Loading,Full
B.Down,Exstart,2-way,Init.2.Exchang,Loading,Full
C.Down,Init,Exstart,Exchang,Loading,Full
D.Down,Init,2-way,Exstart,Exchang,Loading,Full