Final answer:
The reader can infer from paragraph 3 that Kudzu is a difficult plant to control or eradicate given its ability to out-compete native species, indicating that it is hardy and robust.
Step-by-step explanation:
From paragraph 3, the reader can infer that Kudzu is a hardy plant that poses significant challenges for eradication. This inference is made on the basis that Kudzu, a Japanese vine, was introduced to help control soil erosion but quickly became a troublesome pest due to its ability to outcompete native species. The plant thrived in the southeastern United States because it had no natural predators. Therefore, the fact that Kudzu could out-compete native vines in taking over their niches suggests that it is a robust and hard to control species, supporting option C. Additionally, it highlights the issue with introducing non-native species to new environments where they can disrupt the local ecosystem's balance.