During a Health History the Nurse Is Concerned That a Male

During a health history the nurse is concerned that a male patient is at risk for developing bladder cancer. Which information from the history caused the nurse to have this concern?

A) Plays tennis twice a week.
B) Smokes 1 ppd of cigarettes.
C) Sleeps 7 to 8 hours each night.
D) Eats a salad several times a week.
E) Works in a steel manufacturing plant.