Having Kittens - Answer

The answer is C!

Having kittens refers to being terribly upset to the point of hysteria.

In medieval times, cats were thought of as the witch's familiars. If a pregnant woman was suffering agonizing pains, it was believed she was bewitched and that she had kittens clawing at her inside her womb.  Women about to give birth to a litter of kittens would become hysterical with fear and disgust, so it's easy to see how the phrase "having kittens" has come to stand for a state of angry panic.

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