Both due process and ethical rules require that prosecutor's ______.

A) reveal evidence to the defense if that evidence tends to negate guilt
B) see that the defendant has the best qualified attorney available
C) not engage in plea bargaining
D) seek the most severe punishment legally authorized

Both due process and ethical rules require that prosecutors disclose any evidence that is favorable to the defendant, including evidence that tends to undermine the guilt of the defendant. This is known as the Brady rule, named after the Supreme Court case Brady v. Maryland. Therefore, the best answer is A, which states that prosecutors must reveal evidence to the defense if that evidence tends to negate guilt. The other choices are incorrect: B and D are not required by due process or ethical rules, and C is not prohibited but is generally discouraged as it may lead to unjust outcomes.