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]: National forests have regulations that restrict ____ wheeler use to established roads.\Question: Choose the right answer from options given a) no b) four c) six d) nine
[EX A]: b

[EX Q]: Mammals have only ____ sets of teeth.\Question: Choose the right answer from options given a) six b) five c) seven d) two
[EX A]: d

[EX Q]: Magic spells fall into ____ categories, such as attack, healing, and status magic.\Question: Choose the right answer from options given a) four b) three c) eight d) one
[EX A]:
a