Given a sentence with a missing word, pick the answer option that best fills out the missing word in the sentence. Indicate each answer with its index ('a', 'b', 'c', 'd').

Q: Chimeras are ____ headed creatures that shoot fire from all three heads, damaging a wide area.\Question: Choose the right answer from options given a) three b) one c) eight d) six

A: a
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Q: Many animals use two or ____ forest structure types.\Question: Choose the right answer from options given a) eight b) zero c) two d) three

A: d
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Q: Clays are silica minerals with a ____ dimensional sheet structure.\Question: Choose the right answer from options given a) seven b) no c) nine d) two

A:
d
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