Final answer:
Sam assumes that the term 'feline' means a specific cat, referring to the individual cat they are observing.
Step-by-step explanation:
In the given scenario, Sam assumes that the term 'feline' refers to a specific cat. When Sam's mother points out a cat and uses the word 'feline', she is likely referring to the individual cat they are observing, rather than making a general statement about all cats or a type of cat. Sam understands 'feline' as specifically meaning the cat they are seeing, rather than a domesticated animal, an animal with fur, or an unknown creature.