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').

[EX Q]: Bytes are sets of ____ bits.\Question: Choose the right answer from options given a) four b) eight c) five d) ten
[EX A]: b

[EX Q]: Firebrat eggs hatch in about ____ weeks.\Question: Choose the right answer from options given a) ten b) one c) two d) no
[EX A]: c

[EX Q]: Milk proteins can cause colic, a digestive upset that bothers ____ in five infants.\Question: Choose the right answer from options given a) no b) eight c) one d) nine
[EX A]:
c