— Do you mind if I keep pets in this building?

— _____. [ ]

A. I'd rather you didn't, actually

B. Of course not, it's not allowed here

C. Great! I love pets

D. No, you can't

人类、多种动物均需要2种以上景观要素才能生存与发展的事实充分证明了（）的重要性。