Yan, a middle-aged woman who immigrated to the U.S. from China, and Tracy, a young white woman in ...

Yan, a middle-aged woman who immigrated to the U.S. from China, and Tracy, a young white woman in her mid-twenties, share an office at a university, where they work together as research assistants. Tracy seems to keep her distance from Yan (and vice versa) outside of work-related tasks because they appear to have vastly different world views. Their boss should:
 
  A) challenge them to learn to embrace and appreciate each other's worldview rather than be threatened by it.
  B) fire one or both of them if they refuse to become friendly with each other.
  C) reassign them to different offices so they will be with coworkers who are similar to them.
  D) ignore the tension as long as they are completing their tasks.