Passage Summary: Peter suggests that keeping plants slightly thirsty makes them harder for bugs to eat, so farmers should water less. Jennifer agrees and adds that these thirsty plants also produce their own natural bug spray.

Conclusion: Farmers should limit watering to the minimum amount necessary to prevent crop loss or growth issues.

Reasoning: Mildly drought-stressed plants have tougher leaves that insects find less appealing than the leaves of well-watered plants.

Analysis: Jennifer’s role is to provide supplementary evidence for Peter’s position. She begins with 'Indeed,' which immediately establishes her agreement with Peter's conclusion. By introducing the fact about 'pesticidal toxins,' she offers a second, independent biological mechanism that supports Peter's recommendation to keep plants mildly stressed. When evaluating her role, look for an option that describes her as offering an additional reason to follow Peter's advice.