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]: Double price is based on two golfers sharing ____ room.\Question: Choose the right answer from options given a) one b) zero c) six d) nine
[A]: a


[Q]: Baboons can travel up to ____ miles a day.\Question: Choose the right answer from options given a) seven b) three c) two d) six
[A]: d


[Q]: Cheese makes a remarkable culture medium for bacteria, which stay alive for up to ____ months.\Question: Choose the right answer from options given a) zero b) eight c) six d) four
[A]:
c