Answer:
The poem is about a rose that grew in the concrete, and it basically says something small and unimportant can one day, become beautiful! Hope this helps! :D
Explanation:
The tone is the writer's attitude toward the audience and the subject.
Tone sometimes gets mistaken for mood.
Most likely A.
In this case a simple statement could be any of those, to shorten to the simple statement you would generalize :)