Well, I don't know. I do kind of agree that you can see some cleavage, but the school did say specifically in the dress code, "show no cleavage." That doesn't give her a reason to wear a dress that shows the slightest cleavage. It's still there, and the school does have the right to send her home. She can still wear fashionable clothing, but I think she will need to stay away from the low-cuts that can show some cleavage for a girl her size.
And I do think the school's dress code with that "no cleavage" is pretty reasonable.
