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In its early stages, dementia is often _______ from normal ageing, in which the older brain may naturally begin to show signs of cognitive impairment. Neither dementia nor cognitive ageing is currently _______, though they may be slowed through diet, exercise, and keeping the mind agile with social and intellectual activity.

Solution

✅ Correct Option: 3

In its early stages, dementia is often _______ from normal aging, and (neither dementia nor cognitive ageing) is currently _______, -> 2 Cases.

Case 1: Dementia = viewed different than normal aging + it is curable.

Case 2: Dementia = not viewed different, + incurable.

Note: (it cant be a mix of both since the conjunction is ‘and’)

...though it may be _______ with diet and exercise. -> Use of though -> opposite of previous words -> This = less sense with Case 1, thus Case 1 = eliminated

Summary -> Words = not different ; incurable ; (anything positive here)

Option 1: Distinguishable ≠ not different -> Eliminated

Option 2: Irreversible -> Not related to aging -> Out of scope -> Eliminated

Option 4: Differentiated ≠ not different -> Eliminated

Option 3: All words make sense -> Correct answer!

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