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]: Food waste is transformed into soil-like humus in ____ to seven days.\Question: Choose the right answer from options given a) ten b) five c) zero d) three
[A]: d


[Q]: Phytochemicals are non-nutritive substances, in that they contain ____ vitamins or minerals.\Question: Choose the right answer from options given a) four b) one c) no d) ten
[A]: c


[Q]: Technological efficiency can lower energy consumption by a factor ____ to five.\Question: Choose the right answer from options given a) three b) eight c) four d) ten
[A]:
a