Research Suggests That Adopted Children Who Have Two Biological Parents

Research suggests that adopted children who have two biological parents with schizophrenia have:

A) an increased likelihood of being diagnosed with schizophrenia themselves, but only if they have extended contact with their biological parents
B) an increased likelihood of being diagnosed with schizophrenia themselves, even if they've had little or no contact with their biological parents
C) a decreased likelihood of being diagnosed with schizophrenia themselves, but only if they have extended contact with their biological parents
D) a decreased likelihood of being diagnosed with schizophrenia, but an increased likelihood of being diagnosed with other psychological disorders