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]: Oranges signify good health, and the number ____ sounds like the word for prosperity .\Question: Choose the right answer from options given a) six b) four c) five d) eight
[A]: d


[Q]: Every person is a carrier for about ____ rare genetic conditions.\Question: Choose the right answer from options given a) nine b) ten c) six d) three
[A]: b


[Q]: Mountain zebras can live up to ____ days without drinking water.\Question: Choose the right answer from options given a) six b) three c) two d) eight
[A]:
b