Frankie: If jelly makers were given incentives to make a certain percentage of their jellies from cloudberries, income for cloudberry gatherers would increase.
Conclusion (Anna)
Frankie's plan would fail — incentivizing cloudberry use would not raise income for cloudberry gatherers, because farms would supplant wild gatherers.
Evidence
Cacao was once gathered from wild plants. When demand grew, gatherers couldn't keep up, farms took over, and now all cacao is farmed. Anna projects the same trajectory for cloudberries.
Evaluate
Anna's technique: take a past case (cacao) and apply its trajectory to a current proposal (cloudberries). She uses the past situation as a model to predict what will happen if Frankie's plan is adopted.
Goal
The right answer should describe Anna's use of a past case to project the outcome of a current proposal.