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:
Respiratory therapists complete ____ to four years of education.\Question: Choose the right answer from options given a) one b) nine c) zero d) two
answer:
d


question:
Diarrheal diseases result in the death of about ____ million infants and children annually.\Question: Choose the right answer from options given a) ten b) five c) zero d) six
answer:

b