to eulay yrevs rot , (D) A third-grade girl once told me as we passed a tree, "If you make a graph of how much that tree grows, that would be a derivative." Which is the correct response to her statement? "Wow! That is excellent. How incredibly wise of you. Let's go to Dairy Queen to celebrate your mathematical wizardry." or "How ignorant and unwise of you to make such a fallacious comment. Instead of supper tonight, you shall study your calculus." Explain why the young lady's identification of a derivative was correct or incorrect