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:
Many tortoises can retract their head, their ____ limbs and tail into the shell for protection.\Question: Choose the right answer from options given a) no b) one c) two d) four
answer:
d


question:
Takins can even balance on their hind hooves to nibble on vegetation ____ feet above ground.\Question: Choose the right answer from options given a) two b) no c) nine d) eight
answer:
d


question:
Airplanes still fly four to ____ times faster than zeppelins.\Question: Choose the right answer from options given a) five b) six c) two d) seven
answer:

a