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: Reservoirs cover an area of the planet ____ times the size of Britain.\Question: Choose the right answer from options given a) two b) eight c) three d) six

A: d
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Q: Pelicans use ____ different ways to feed.\Question: Choose the right answer from options given a) no b) nine c) one d) two

A: d
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Q: Data integrity is the assurance that ____ changes have been made to information that has been sent.\Question: Choose the right answer from options given a) four b) three c) no d) six

A:
c
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