|Question 5Verbal

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Neurobiologists Laura Cuaya, Raul Hernández-Pérez, and colleagues investigated the language detection abilities of eighteen dogs raised in similar settings. The researchers monitored the brain activity of Barney (a golden retriever), Mini (a mixed breed), and other dogs while the animals listened to three recordings: one of The Little Prince being read in Spanish, the second in Hungarian, and a third made up of short, randomly selected fragments of the first two, scrambled so that they didn't resemble human speech. Each dog was familiar with either Spanish or Hungarian, but not both. The team concluded that the amount of previous language exposure a dog has received may influence its ability to distinguish familiar languages from unfamiliar ones.
Which finding from the study, if true, would most directly support the team's conclusion?
Although the dogs general hearing sensitivity declined with age, dogs of all ages showed more brain activity in response to hearing the language they were accustomed to than in response to hearing the other language.
A
The difference between the pattern of brain activity a dog showed when hearing the language it was accustomed to and the pattern of brain activity it showed when hearing the language it was not accustomed to was greatest among older dogs.
B
The similarity between the pattern of brain activity a dog showed in response to hearing the scrambled recording and the pattern of brain activity it showed in response to hearing the language it was not accustomed to was greatest among older dogs.
C
Dogs showed a different pattern of brain activity when hearing the language they were accustomed to than when hearing the scrambled recording, and the difference in brain activity increased with the age of the dog scanned.
D