- Tue Sep 12, 2017 6:08 pm
#39637
Answer choice (A) is discussed by both authors here. Author A mentions "serious reductions in waterfowl" in Line 11 while author B mentions the canvasback as "endangered by purple loosestrife" in Lines 53-55. These would prove that the two authors agree that "some" populations tend to decrease.
Author A mentions the "disastrous effect" of purple loosestrife in Lines 5-6. So it is clear that author A would agree with answer choice (B). However, author B never really mentions any actual disastrous effect. Without a doubt, author B would agree that others believe its effects are disastrous. However, at no point does author B commit to any kind of agreement with that belief.
Eric Ockert
PowerScore LSAT/GMAT/SAT Instructor