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]: Some motors contain ____ gears and spin very fast, and have little if any torque.\Question: Choose the right answer from options given a) four b) three c) five d) no
[A]: d


[Q]: Chemical interactions are essentially electron interactions of ____ atoms.\Question: Choose the right answer from options given a) six b) no c) ten d) two
[A]: d


[Q]: Male stinkpots mature at four to ____ years of age and females at nine to eleven.\Question: Choose the right answer from options given a) two b) eight c) six d) seven
[A]:
d