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]: Bulls can stand as tall as ____ feet at the shoulders.\Question: Choose the right answer from options given a) one b) five c) seven d) four
[A]: b


[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]: Gold plated copper contact pins maximize conductivity with ____ loss of data.\Question: Choose the right answer from options given a) zero b) one c) no d) five
[A]:
c