1.

1).instructor 2). didactic 3). ombudsman4). scrambling

Answer»

The sentence suggests that the blank must CONTAIN a word that means 'watchdog'.

Didactic means preachy. Scrambling is scattering. Curmudgeon is a bad tempered person.

The only word that fits the blank is ombudsman, which means an entity that GUARDS over the INTERESTS of an organisation

Therefore, the correct ANSWER is option 3.



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