下列研究问题不属于群落水平的是[ ]

A．梧桐山鸢每年新增的个体数

B．深圳红树林的范围和边界大小

C．鼎湖山常绿阔叶林中的优势种

D．根瘤菌和豆科植物之间的关系

—Would you please pass me today's newspaper?

—_______ [ ]

A. Yes, please.

B. Here you are.

C. You are welcome.

D. Not at all.