选A
such that 表示因果关系,用于给出理由或作解释,意为“到如此程度;如此……以至”,如:
The nature of the job was such that he felt obliged to tell no one about it.
这种工作的性质就是如此,他觉得只好秘而不宣了.
此外,such that 相当于 such as to do sth
His manner was such as to offend every one who he met.
他态度如此恶劣,以至见谁得罪谁.
不懂追问!