单项选择题

Which of the following statements about dementia is NOT TRUE according to Dr. Marc Agronin?
A.Symptoms of dementia in a young patient are evident.
B.Many conditions cause similar symptoms.
C.There is evidence of an increasing rate of dementia at younger ages.
D.Diagnosis of dementia is difficult sometimes.

A.Symptoms
B.
B.Many
C.
C.There
D.
D.Diagnosis
E.