The text states "Emma's pet purrs and has whiskers." The only animal mentioned that fits this description is a cat. Therefore, Emma owns a cat based on the given information. To confirm, here is the relevant part of the passage: "John has a dog. Sarah owns a cat. Emma's pet purrs and has whiskers. Peter has a hamster." Emma's pet is described as purring and having whiskers, which are characteristics unique to cats. While the text doesn't explicitly say "Emma has a cat", the details about purring and whiskers definitively point to a feline pet. There are no other animals mentioned in the text that would fit this description as well as a cat would. So based solely on the information provided in the given passage, Emma owns a cat as her pet, even though the specific word "cat" is not used. The details about purring and whiskers leave no other plausible pet option besides a cat for Emma.<|end_header_id|>