Final answer:
Having a family history of mental illness contributes to a person's risk of having a mental health disorder, as genetics can play a key role in such conditions. The answer is option B.
Step-by-step explanation:
Of the options provided, having a family history of mental illness is a factor that contributes to a person’s risk of having a mental health disorder. Genetics can play a significant role in the likelihood of developing mental health conditions, and research indicates there's a hereditary aspect to many such disorders. For example, studies have shown that individuals with biological relatives who have schizophrenia or other mental illnesses are at a higher risk of developing similar conditions. Environmental factors and life experiences, including trauma, socioeconomic status, and access to healthcare, are also important, but they are not explicitly mentioned in the choices provided.
It should be noted that having a friend with a mental health disorder or being exposed to a variety of social situations does not directly contribute to one’s risk of developing a mental health condition. Instead, these factors may influence the person’s support network or social experiences. Living in an urban environment is a broader social determinant that can affect one's mental health through factors like stress and access to resources, but it is not as direct a link as a family history of mental illness.