Explanation
Correct answer: A.
Choice A is the best answer. The sentence makes and supports a claim about Iberian orca behavior, claiming that the orcas’ destructive behavior may be the result of understimulation and citing as support the fact that as orcas have spent less time hunting (a stimulating activity), encounters with vessels have increased.
Why the other choices are wrong
Choice B
Choice B is incorrect. While the sentence makes a claim about an orca deterrent, it misrepresents information from the notes. The workshop advised avoiding orcas pending further testing of TAST’s efficacy; it didn’t claim that TAST was effective.
Choice C
Choice C is incorrect. The sentence describes a workshop that addressed the orcas’ behavior; it doesn’t make or support a claim about their behavior.
Choice D
Choice D is incorrect. While the sentence does make a claim about orcas’ hunting behavior, it misrepresents information from the notes; the notes state that increased tuna populations have reduced orcas’ hunting time by 99%, not that tuna populations have increased by 99% because of the orcas’ behavior.