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: ATMs are expensive machines with an average useful life of ____ to fifteen years.\Question: Choose the right answer from options given a) nine b) eight c) ten d) two

A: c
****
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: Jurisdictions are the name given to the ____ geographic groupings in the United States.\Question: Choose the right answer from options given a) four b) eight c) five d) one

A:
c
****