Show timer Statistics
Annette: Dr. McMahon has discredited himself as a credible scientist by claiming that his theory about blood sugar is incontrovertible. A credible scientist must grant the possibility that a theory can be contradicted by future tests and would have to be thrown out.
Annette's conclusion about Dr. McMahon is based on:
Conclusion: Dr. McMahon is not a credible scientists anymore after his claim that his theory can't be refuted. What we're looking for: The cause of the argument that leads to the conclusion.A. a personal attack against Dr. McMahon.
The conclusion is not based on a personal attack. Its the opposite way: Because of the argument stated in the stimulus Annette arrives at the conclusion that attacks Dr. Mcmahon.B. a general principle.
This looks good. The general principle can be found in the stimulus: "A credible scientist must grant the possibility that a theory can be contradicted by future tests and would have to be thrown out. It is clear that Dr. McMahon doesn't behave according to this principle and hence gets attacked by Annette. Therefore, B is the correct answer.C. ambiguous wording.
It is nowhere mentioned that the theory is invalid because of ambiguous wording.D. an attack against Dr. McMahon's experimental data.
The experimental data also aren't of concern in Annette's argument.E. the pre-emptive rejection of his theory.
This might look like a contender, but it actually isn't. We are looking for the cause of Annette's conclusion. The rejection is the result/conclusion of Annette's argument, not the cause. So in regards to the question we can safely preclude answer E. Hope this helps