In which one of the following sets of animals do all the four give birth to young ones ?

1. A. (1) Lion, Bat, Whale, Ostrich
2. B. (2) Platypus, Penguin, Bat, Hippopotamus
3. C. (3) Shrew, Bat, Cat, Kiwi
4. D. (4) Kangaroo, Hedgehog, Dolphin, Loris

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