Explanation
Correct answer: B.
Choice B is the best answer. The text states that archaeologists are interested in using scents to better understand "ancient rituals, trade, social hierarchies, and medicine," all of which are important aspects of ancient life.
Why the other choices are wrong
Choice A
Choice A is incorrect. The text doesn’t say anything about investigating if people’s sense of smell has declined in recent centuries. It says that scents fade over time—not that people have gotten worse at smelling scents.
Choice C
Choice C is incorrect. The text says that archaeologists are interested in using scents to better understand "ancient rituals, trade, social hierarchies, and medicine," but it doesn’t say anything about ancient scents being enjoyable to people today.
Choice D
Choice D is incorrect. The text doesn’t say anything about developing new medicines. Rather, it says that archaeologists are interested in using scents to better understand "ancient rituals, trade, social hierarchies, and medicine."