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:
Classes play ____ distinct roles in object-oriented programming.\Question: Choose the right answer from options given a) eight b) zero c) two d) no
answer:
c


question:
Food chains consist of ____ trophic levels.\Question: Choose the right answer from options given a) ten b) three c) one d) four
answer:
d


question:
Cubs emerge from the den when they are four to ____ months old.\Question: Choose the right answer from options given a) three b) six c) zero d) eight
answer:

b