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]: Honeybees have ____ jobs.\Question: Choose the right answer from options given a) ten b) one c) three d) two
[A]: d


[Q]: Avian kidneys have ____ kinds of nephrons.\Question: Choose the right answer from options given a) four b) eight c) no d) two
[A]: d


[Q]: Mammals have a dentition divided into ____ distinct types of teeth.\Question: Choose the right answer from options given a) four b) three c) six d) one
[A]:
b