Julie Owns a Gun and Has for Several Years

Julie owns a gun and has for several years. She is arrested for possession of a firearm within the city where she lives. The day following her arrest, the city passes a law making gun ownership of any kind illegal and punishable by a year in jail for the first offense. Julie is sentenced to one year and a day in prison. ​

A) Julie contends that because the law under which she was sentenced was passed the day after her arrest, her conviction on the gun possession charge is a clear violation of the principle of: ​
B) ex post facto laws.
C) bill of attainder.
D) due process.
E) overbreadth doctrine.