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:
Voles are prolific breeders and can produce four to ____ litters a year.\Question: Choose the right answer from options given a) four b) two c) six d) three
answer:
c


question:
Tilt consists of ____ small surface vents.\Question: Choose the right answer from options given a) zero b) three c) seven d) no
answer:
b


question:
Tornado intensity is measured on a scale of ____ to five, with five the strongest.\Question: Choose the right answer from options given a) zero b) no c) six d) one
answer:

a