Which of the Following Would Be Considered a Criminal Act

Which of the following would be considered a criminal act?

A) Martin had a heart attack while driving his semitrailer on a highway,causing a head-on collision with another trailer,and resulting in a 40-car pileup and 17 deaths.
B) Last summer,Sam made and sold crack cocaine and marijuana to teenagers in his neighborhood,leading to drug network and addiction amongst teenagers of that locale.
C) Karen,obsessed with thoughts of her husband's affair with his colleague,wrote in her diary detailed plots of how to kill the woman.
D) Helen thinks she cannot get through each day without taking LSD,a psychedelic drug.