患者，男，50岁。近日咳嗽痰中带血，首选的治疗药物应是（）

A.牡丹皮

B.赤芍

C.地榆

D.白及

E.白茅根

Directions:

Write an essay of about 160-200 words based on the following drawing. In this essay, you should:

1) describe the picture briefly,

2) interpret the meaning, and

3) give your comment.