instruction:
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:
Today there are ____ UK hospitals doing heart transplants.\Question: Choose the right answer from options given a) three b) five c) six d) nine
answer:
d


question:
Natural indium contains ____ isotopes.\Question: Choose the right answer from options given a) one b) eight c) two d) seven
answer:
c


question:
Mothers begin to prepare girls to run a household when they are between seven and ____ years old.\Question: Choose the right answer from options given a) two b) seven c) no d) nine
answer:

d