Recent research on comorbidity led to diagnostic systems that:

A) designate discrete categories of disorders that represent distinct types of pathology.
B) use a dimensional approach to diagnosis rather than the previous systems, which attempts to identify discrete categories of disorders.
C) limit the accommodation of cultural variations in the expression and characterization of disorders.
D) deemphasize the relationships between psychopathologies and make them more distinct from each other.

Recent research on comorbidity has led to a shift towards a dimensional approach to diagnosis, which recognizes that many disorders share common symptoms and underlying factors. This allows for a more flexible and nuanced understanding of mental health conditions, and can better accommodate cultural variations in the expression and characterization of disorders. The previous systems, which attempted to identify discrete categories of disorders, may have missed important connections and resulted in overdiagnosis or misdiagnosis.