Before coming to trial, Sam was assigned a public defender, was informed of the charges, and was given a chance to review the evidence against him. At the trial, the prosecutor called the crime scene investigator to the stand, and she provided scientific evidence to show that Sam had indeed been inside the victim’s home.​ The public defender, presentation of charges, and the discovery process were all elements of , which is guaranteed by the Constitution. a. due process b. deterrence c. impartiality d. beneficence