— Next Monday is my birthday.

— Is that so? _____

— Thank you. [ ]

A. I don't believe so.

B. I'm so glad.

C. What presents do you need?

D. Many happy returns of the day.

男性，63岁，晨起床时，发现言语不清，右侧肢体不能活动。既往无类似病史。发病后5小时，体检发现神志清楚，血压 120/80mmHg，失语，右侧中枢性面瘫、舌瘫，右侧上、下肢肌力2级，右半身痛觉减退，颅脑CT未见异常。

病变的部位可能是

A．左侧大脑前动脉

B．右侧大脑前动脉

C．左侧大脑中动脉

D．右侧大脑中动脉

E．椎-基底动脉