Question

@claire_crites, Happy to help. We're looking for the answer that provides the most support for the argument. (A) says, "When a model of a female guppy was substituted for the female guppy, male guppies still courted, but were not more likely to show their side with more orange." (A) strengthens the argument by showing no cause, no effect. The male guppies still courted the model female (fake) guppy, but they weren't more likely to show their side with more orange. The model female guppy would not provide any feedback to the males, so there is no cause present, and the males stopped showing their side with more orange, so there's no effect. This most strongly supports the argument, so it's the correct answer choice. Does this answer your question? Let us know if you'd like more clarification!