Passage Summary: Since plants can't feel pain because they don't have nervous systems, you can't actually mistreat them.

Conclusion: It is impossible to mistreat plants in any meaningful way.

Reasoning: Plants lack nervous systems, and a nervous system is a requirement for the experience of pain.

Analysis: This argument relies on a specific conditional chain: No Nervous System → No Pain → No Mistreatment. We are given the first link (Plants → No Nervous System → No Pain), but the connection to 'mistreatment' is left hanging. To make this conclusion follow logically, we need a 'Sufficient Assumption' that bridges that final gap. Look for an answer that explicitly states that the ability to feel pain is a requirement for mistreatment. If mistreatment is impossible without pain, then the lack of a nervous system successfully guarantees that plants cannot be mistreated.