What should not be loaded with animals and human foodstuffs?

The appropriate choice is that poisons should not be loaded with animals and human foodstuffs due to the significant risk they pose in terms of contamination. Regulatory guidelines and safety protocols are established to prevent any potential exposure to toxic substances that could harm both humans and animals. When poisons are transported alongside food, there is a clear danger that the food could become contaminated, leading to serious health issues for consumers.

In contrast, loading plants, medicines, or tools with food does not inherently carry the same level of risk for contamination or harm. While certain medications must be handled with care, they are generally packaged in ways that prevent them from contaminating food. Additionally, plants and tools are not typically hazardous materials that would compromise the safety of foodstuffs when loaded together. Therefore, it is crucial to keep poisonous substances separate to ensure the safety and welfare of all involved.