In Texas,special Courtroom Rules of Evidence Apply in the Prosecution

In Texas,special courtroom rules of evidence apply in the prosecution of sexual assault cases.Which of the following is one of those special rules of evidence?

A) Reputation evidence regarding the victim's previous sexual behavior is never admissible into evidence.
B) The accused is banned from testifying about any prior sexual activity with the victim.
C) A conviction may not be had unless DNA evidence is presented that raises a presumption that the accused was the perpetrator.
D) Some physical evidence must be presented to corroborate the victim's claim of non- consensual sexual activity.