1.

1). Insolent, insidious2). Appropriate, emotional3). Luminous, mannered4). Pervasive, petulant

Answer»

The sentence mentions that solution for treating dementia which generally affects old people. Appropriate means ‘suitable or proper in the circumstances’. EMOTIONAL means ‘relating to one's emotions’. The meanings of the other words are:

Insolent=> SHOWING a rude and ARROGANT lack of respect.

Insidious=> proceeding in a gradual, subtle way, but with very harmful effects.

Luminous=> bright and shining

Mannered=> behaving in a specified way.

Pervasive=> SPREADING widely throughout an area or a group of people.

Petulant=> CHILDISHLY sulky or bad-tempered

Practical=> likely to succeed or be effective in real circumstances; feasible.

Judicious=> wise and sensible

Hence the correct answer is option 2.



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