Newspaper: Increases in produce prices apparently have led to an increase in the planting of personal gardens.
Conclusion
Increases in produce prices have led to an increase in the planting of personal gardens.
Evidence
The two largest retail seed companies each reported sales increases of 19% last year, a year in which the price of produce spiked.
Evaluate
The "apparently" in the first sentence is the Opinion Indicator that shows it's our conclusion, plus the second idea is past tense and quantitative, making it seem factual.
This has the Curious Fact / Explanation structure we see so often in Strengthen / Weaken questions.
Curious Fact: Why did the two biggest retail seed companies report 19% increases in sales last year? Author's Story: Last year, the price of produce spiked, so people decided to start growing produce at home in personal gardens, so they bought a bunch of seeds from these two large companies.
The pressure points: - how ELSE could we explain the Curious Fact - how plausible is the Author's Story
Goal
Since this is Weaken, we would either want 1. a different reason why the two companies have +19% in sales (maybe they're selling something other than seeds / maybe some of their competitors went out of business so that now they have a bigger market share)
or
2. something that undermines the storyline that people reacted to high produce prices at the supermarket by thinking, .