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').
--------
Question: Ruminants have an even number of toes on each foot and a stomach with either three or ____ chambers.\Question: Choose the right answer from options given a) four b) two c) seven d) five

Answer: a


Question: Pups get their sight in about ____ days.\Question: Choose the right answer from options given a) five b) six c) ten d) nine

Answer: c


Question: Condoms actually play ____ roles during sex.\Question: Choose the right answer from options given a) zero b) no c) nine d) two

Answer:
d