I NEED THE CORRECT ANSWER TO THIS ASAP FOR A TEST PLEASE!!!! Jessica brings a cell phone to school. The school has no rules about phones, but the principal creates a new rule that day that says that anyone who brings their phone to school will be suspended, and he attempts to suspend Jessica for having her phone on her in school.

How have her rights been violated? *

a) By having habeas corpus taken away
b) Because of an ex post facto law
c) Because of judicial precedent being created
d) She faced cruel and unusual punishment