Used to be called dementia. Symptoms of neurocognitive disorder
due to Alzheimer's disease, Impairment of memory, orientation, judgement and
reasoning, Inability to integrate new info, Failure to learn new associations, forget
important events, lose objects, Interest in non-routine activity narrows, lost
interest in others= socially isolated , Progression, depression, combative,
anxious, etc.
Increased exchange surface provided by their membranes
The answer is vehicle fuel
I would say B, because as you can see from the explanation of what a luster is described is. B matches the classifications