Which pesticide is described as not toxic?

• A. Mexacarbate
• B. Carbaryl
• C. Sevin
• D. Carbofuran

Answer: (B)

The thing being tested is how toxicity varies between pesticides and how labels describe hazard. Among these options, the active ingredient carbaryl is described as having relatively low acute toxicity to mammals compared with the other two more toxic options. Sevin is just the brand name for the same chemical, carbaryl, so it shares the same level of hazard. Even though all these pesticides can be toxic if misused, carbaryl is considered the least hazardous to humans in typical use scenarios, which is why it’s described as “not toxic” in this context. Mexacarbate and carbofuran are much more toxic to humans and non-target organisms, so they’re not described that way.