Rodolfo is strongly interested in becoming a mediator, and he is also considering pursuing a law degree. He is familiar with the particulars of law school and the bar examination, but he wants to determine what qualifications he would need to pursue a career as a mediator. When he researches that subject, what will he learn?

a$.$ After he graduates from law school, Rodolfo will be qualified to sit for the state ADR examination; if he passes the ADR exam, he will be a certified mediator.

b$.$ A mediator does not need to be a lawyer, so Rodolfo can pursue this field by acquiring the appropriate training and expertise.

c$.$ If Rodolfo wants to become a mediator, he needs to practice first as a negotiator.

d$.$ None of these choices