The correct answer is D: easy and effortless. 'Arduous' means involving or requiring strenuous effort — difficult and tiring. Its opposite is 'easy and effortless'.
A.strenuous and exacting
B.onerous and overbearing
C.difficult and exacerbating
D.easy and effortless✓ Correct
Explanation
'Arduous' means involving or requiring strenuous effort — difficult and tiring. Its opposite is 'easy and effortless'. Option (a) strenuous and exacting is a synonym, and option (b) onerous is also close in meaning. Hence (d) is the correct antonym.
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