48 According to the passage, which of the following is an example of positive experience for a cat?
(A) Taking a nap.
(B) Playing with a dog.
(C) Making a sound.
(D) Eating a snack.
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統計: A(93), B(127), C(236), D(2241), E(0) #2572873
統計: A(93), B(127), C(236), D(2241), E(0) #2572873