Everyone seems to know who the daisies are (wise confident youth with their lives ahead of them -- at least until summer's end). No one I read made any comment about the brown and barren fields (likely old age) leading to asters who are sluggish but still alive while other life forms are gone (death is approaching). The asters cannot answer a question like that.
So the two words you want are spring and daisies. They know. They are wise, and they speak with all the confidence of youth.
A persuasive essay if it is this type of this. You should have put a. b. c. and d. if they had that option. But I would say persuasive because Darryl it trying to encourage local agencies and community members to donate time and funds.