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]: Owls have ____ toes on each foot, like most birds.\Question: Choose the right answer from options given a) no b) seven c) four d) one
[A]: c


[Q]: Control is defined as a dead plant with ____ signs of life.\Question: Choose the right answer from options given a) ten b) nine c) no d) zero
[A]: c


[Q]: Most babies start teething at ____ months.\Question: Choose the right answer from options given a) six b) five c) four d) nine
[A]:
a