In this task, find the most appropriate number to replace the blank (indicated with _ ) and express it in words.

Q: Some manatees have _ or four nails on the tip of each flipper.

A: three
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Q: Porphyritic textures form primarily because of _ rates of cooling.

A: two
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Q: Animals are innocent, whatever they do, because they have _ conscious desire to achieve or become.

A:
no
****