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: Sexual reproduction involves ____ individual organisms.\Question: Choose the right answer from options given a) six b) no c) two d) nine

A: c
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Q: Tetrapods are animals that have ____ legs or leg-like appendages.\Question: Choose the right answer from options given a) four b) one c) ten d) six

A: a
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Q: Cleavage is good in ____ directions forming cubes.\Question: Choose the right answer from options given a) two b) three c) six d) zero

A:
b
****
