The correct answer is C. Wasteful.
Expensive is not a synonym of extravagant because expensive can refer to something that costs a lot of money, while extravagant can refer to something that is wasteful or excessive. Proud is not a synonym of extravagant because proud refers to someone who has a high opinion of themselves, while extravagant does not necessarily have anything to do with someone’s opinion of themselves. Reckless is
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