Well, you could tell her that forcing your daughter to waste time preparing for a test so that she gets a score that will benefit the school far more than your daughter is not your idea of meeting her needs.
Of course, you'll feel good for a while after you said this, but it won't get you anywhere. But you can think it and people here will agree!
Alternatively, if she took the test last year with no special prep, you could present the results of that test and suggest meaningful alternatives to test prep. I'd make a short list of things that you think would benefit your daughter.
