Known for his ______ spending, the heir quickly squandered his inheritance on lavish parties and extravagant luxuries. Which word is an antonym for "profligate"?

✓ Correct Answer: Option A

"Profligate" means recklessly extravagant or wasteful in the use of resources. "Frugal" means careful in the use of resources and not wasteful, making it the antonym.