Which statement best explains the pathway of a licensed practical nurse (lpn) and a registered nurse (rn)? a. lpns require one less year of schooling than rns, and both need to pass a licensure exam. b. lpns require one more year of schooling than rns, and both need to pass a licensure exam. c. only rns need licenses, but both rns and lpns need specialized training in cardiology. d. only lpns need licenses, but both lpns and rns need specialized training in cardiology.