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\( a^{b}\)

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\((a)\)

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prosperous[a]

(a)

Prosperous is the answer

The antonym of Properus is AUSTERE

Austere actually means harsh,relentless or rigorous.

Then prosperous means sucessful,fortunate or thriving

yes A is correct

Austere means: severe or strict in manner or attitude.

Prosperous means successful.

The synonyms of Austere are strict, stern, harsh, unfriendly, etc. So the opposite of austere is prosperous.

Another way of getting the answer is to study the available options. austere is a negative word so its antonym must be a positive word. the only positive word in the option is likely to be the answer. A reliable way of guessing.