D. All of the animals mentioned are reptiles.
The answer I have gotten is D. So basically all of them.
Reptiles include all the listed groups: crocodiles, lizards, snakes, and turtles. Therefore, the correct answer is option d: 1, 2, 3, and 4. Reptiles are characterized by their scaly skin and ectothermic nature, allowing them to thrive in diverse environments.
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