Evaluate the role of vascular dementia in the context of dementia-related diseases and its relationship with Alzheimer’s.

A. Vascular dementia is unrelated to Alzheimer’s.

B. Vascular dementia is another significant cause of dementia, alongside Alzheimer’s.

C. Vascular dementia is a less common form of Alzheimer’s.

D. Vascular dementia is the same as Alzheimer’s.