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]: Lung disease is America's number three killer, responsible for ____ in seven deaths.\Question: Choose the right answer from options given a) five b) nine c) one d) four
[A]: c

[Q]: Distilled water enters the body with ____ minerals but leaves the body with minerals.\Question: Choose the right answer from options given a) zero b) no c) one d) nine
[A]: b

[Q]: Several embryos are transferred into the uterus after three to ____ days.\Question: Choose the right answer from options given a) five b) nine c) two d) six
[A]:
a