The set of symptoms of a diagnosis that tend to occur together is called a(n)

A) category.
B) syndrome.
C) assessment.
D) prognosis.

A syndrome refers to a group of symptoms that tend to occur together and are a characteristic feature of a particular disease or disorder. A category refers to a group of similar things, but is not specific to medical diagnosis. Assessment refers to the process of evaluating an individual's condition or situation, while prognosis refers to the predicted outcome or course of a disease.