What is one of the most important reasons the u. s. constitution guarantees a right to a jury trial in criminal cases?

jurors allow the judge to focus on managing the courtroom instead of whether or not the defendant is guilty.
jurors are a group of diverse individuals who must find agreement about the facts of the case.
jurors are a group of people who must explain and obey the instructions the judge gives them.
jurors get a chance to take part in a constitutional responsibility of citizens.