— We shall take the conditions into careful account ____ you have attached to this contract.

— Thanks. Hope for further cooperation.

A．as

B．which

C．where

D．what

山海关、嘉峪关、玉门关和友谊关被称为中国的“四大名关”，下列关于“四大名关”的说法错误的是( )。

A．山海关是长城的起点，被称为“天下第一关”

B．嘉峪关是长城上的最大关隘

C．玉门关在河西走廊西端的西宁市境内

D．友谊关曾被称为镇南关