下列向量中，与向量α=(1，-1，0)正交的单位向量是()
A (1，0，0) B (0，1，0) C <img src="https://www.beizhujiaoyu.com/uploads/202208/164717354496041.png" width="85" height="37" /> D <img src="https://www.beizhujiaoyu.com/uploads/202208/164717354871161.png" width="80" height="36" />
