A Possible Characteristic of an Ex Post Facto Law Includes

A possible characteristic of an ex post facto law includes the fact that

A) it alters the legal rules of evidence,allowing evidence of guilt that is lesser or different from what the law required at the time of the commission of the offense by the offender.
B) it makes criminal an act committed less than six months after passage of the law,thus preventing the criminal from having enough time to know that it was a crime.
C) it inflicts a less punishment than the original law.
D) All the Above are correct.