单项选择题

ElementUI的Layout布局,分为左和中共两栏,其中左部宽度占三分之一,中部占三分之二,正确的分法是()

A.〈el-row〉〈el-col :span="1"〉〈/el-col〉〈el-col :span="2"〉〈/el-col〉〈/el-row〉
B.〈el-row〉〈el-col :span="4"〉〈/el-col〉〈el-col :span="8"〉〈/el-col〉〈/el-row〉
C.〈el-row〉〈el-col :span="8"〉〈/el-col〉〈el-col :span="16"〉〈/el-col〉〈/el-row〉
D.〈el-row〉〈el-col :span="16"〉〈/el-col〉〈el-col :span="8"〉〈/el-col〉〈/el-row〉