47. According to the passage, how much milk chocolate would be poisonous to a cat?
(A) Substantially less than 20 ounces.
(B) Substantially more than 20 ounces.
(C) Approximately one pound.
(D) Half a small chocolate bar.
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統計: A(10), B(4), C(5), D(3), E(0) #1888587
統計: A(10), B(4), C(5), D(3), E(0) #1888587