Employees at a fast food restaurant use racial slang when addressing each other. Most of the employees do not find these terms offensive. However, a current employee, Rob, knows that one of his coworkers is offended. Rob should
a. Join in and use the slang to fit in with the team
b. Speak to the offended coworker privately and offer support
c. Ignore the situation and pretend not to notice
d. Report the use of offensive language to the supervisor