One of Your Roommates Comes from a Rural Area and the Other

One of your roommates comes from a rural area and the other one from an urban center.Does this affect their probability of ever experiencing a schizophrenic episode?

A) No; genetic factors tend to override environmental factors in schizophrenia.
B) Maybe; it depends entirely on the stress levels present in each environment.
C) Yes; the one from the urban area is at higher risk.
D) Yes; the one from the rural area is at higher risk.