Which of the Following Is True with Regard to an Exculpatory

Which of the following is true with regard to an exculpatory clause?

A) An exculpatory clause excuses one party from liability for her own tortious conduct.
B) Where one party has a superior bargaining position that has enabled him to impose an exculpatory clause upon the other, the courts are inclined to nullify the provision.
C) An exculpatory clause may be unenforceable for unconscionability.
D) All of these are true.