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: People can go without food for up to about ____ weeks.\Question: Choose the right answer from options given a) three b) one c) nine d) four

Answer: a


Question: Cows can be up to ____ times more active than normal while in heat.\Question: Choose the right answer from options given a) eight b) nine c) two d) six

Answer: a


Question: Most spiders have eight eyes, a head, thorax, abdomen and ____ legs.\Question: Choose the right answer from options given a) ten b) eight c) three d) six

Answer:
b