to satisfy fully or overindulge

• A. Satiate
• B. Rarefy
• C. Specious
• D. Soporific

Answer: (A)

The main idea is a word that means satisfying hunger or desire completely, to the point of fullness or even excess. Satiate fits this perfectly: to satisfy fully, often by eating or indulging to fullness. It captures both the sense of relief from hunger and the hint of overindulgence when the situation calls for it.

Think of how you might say a big meal will satiate you, leaving you feeling content and full. The other options don’t convey fullness or indulgence: rarefy means to make something rarer or thinner; specious means seeming plausible but actually false; soporific means sleep-inducing or dulling. So satiate is the best match for “to satisfy fully or overindulge.”