Choose the correct answers from the alternatives given.
According to Lamarck, a giraffe has a long neck because

God designed it that way

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Catastrophes eliminated short-necked forms

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Its ancestors stretched their necks to get food

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Ancestral giraffes with slightly longer necks got more food than others and left more surviving offspring

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Solution

The correct option is C Its ancestors stretched their necks to get food
According to Lamarck, if an organism changes during life in order to adapt to its environment, those changes are passed on to its offspring. So giraffe stretched their neck to get food and generation after generation, their necks got longer as they passed onto their traits.
So the correct option is C, its ancestors stretched their necks to get food.

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