Which of the following constitutional or judicial principles or rules is used by a court to determine whether a regulation impinging upon a constitutional right is necessary because it meets a "compelling state interest" and is "narrowly tailored" to meet that "compelling state interest" and "uses the least restrictive means" to meet that government purpose? * A. No ex post facto laws
B. No bills of attainder
C. Rule of lenity
D. Right to a Writ of Habeas Corpus
E. Strict Scrutiny Test
F. Heightened Scrutiny Test
G. Rational Basis Test