Letter to the Editor: Your article on effective cockroach control states that vexone is effective against only one of the more than 4,000 cockroach species that infest North America: the German cockroach.
Conclusion
You're wrong to say that vexone is only effective against the German cockroach. (it's been used effectively for almost a decade against all the species that infest North America).
Evidence
We have many documented studies of our product Roach Ender, which contains vexone, that demonstrate this.
Evaluate
This question stem looks like a Must Be False EXCEPT. But when we read the stimulus, it sounds like an argument.
The question stem refers to it as a "view", which is an ambiguous term that could allude to an individual belief or to an entire argument.
The stimulus reads like a rebuttal argument. We might notice the Part vs. Whole flaw happening.
Vexone is a part of Roach Ender.
Roach Ender, the product, is effective against all the species that infest North America.
Thus, the author concludes, vexone is effective against all the species that infest North America.
Goal
It's hard to know what the answers will be offering us, because we never see question stems like, "All of these conflict with this view EXCEPT".
We should probably just look for four answers that seem to either weaken the argument or go against one of the claims presented.