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]: Piglets normally grow about half their potential growth rate from birth to ____ weeks of age.\Question: Choose the right answer from options given a) zero b) no c) five d) three
[A]: d


[Q]: Water softeners add sodium to drinking water in ____ ways.\Question: Choose the right answer from options given a) zero b) six c) two d) nine
[A]: c


[Q]: Collisions result in a compression force, pushing ____ plates together.\Question: Choose the right answer from options given a) one b) zero c) two d) eight
[A]:
c