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').

[EX Q]: Ants have six legs, and each leg has ____ joints.\Question: Choose the right answer from options given a) nine b) zero c) two d) three
[EX A]: d

[EX Q]: Chacoan peccaries are the largest of the ____ peccary species.\Question: Choose the right answer from options given a) eight b) three c) ten d) no
[EX A]: b

[EX Q]: Aardvarks have ____ sharp, spoon-shaped claws on their front feet and five on their hind feet.\Question: Choose the right answer from options given a) nine b) ten c) four d) zero
[EX A]:
c