instruction:
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').
question:
Astronomers fall in ____ classes - professionals and amateurs.\Question: Choose the right answer from options given a) two b) four c) six d) zero
answer:
a


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


question:
Most pickup trucks have ____ sets of shock absorbers, one for each wheel.\Question: Choose the right answer from options given a) five b) eight c) one d) four
answer:

d