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]: Wind is renewable, and produces ____ emissions or by-products.\Question: Choose the right answer from options given a) five b) nine c) zero d) no
[A]: d


[Q]: Lines of force are ____ dimensional, surrounding a bar magnet on all sides.\Question: Choose the right answer from options given a) eight b) three c) zero d) no
[A]: b


[Q]: Lions hunt together, sometimes in packs of four or ____ to bring down a water buffalo.\Question: Choose the right answer from options given a) five b) eight c) two d) three
[A]:
a