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]: All baleen whales have ____ blow holes.\Question: Choose the right answer from options given a) zero b) four c) seven d) two
[A]: d


[Q]: Decapod crustaceans have ____ pairs of limbs.\Question: Choose the right answer from options given a) five b) four c) six d) seven
[A]: a


[Q]: Hummingbirds eat about every ____ minute, slurping down twice their body weight in nectar every day.\Question: Choose the right answer from options given a) five b) six c) ten d) nine
[A]:
c