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]: Babies show an interest in solid foods when they are approximately four to ____ weeks old.\Question: Choose the right answer from options given a) nine b) eight c) five d) six
[EX A]: c

[EX Q]: Children now account for only ____ percent of all forest fires caused in the United States.\Question: Choose the right answer from options given a) five b) four c) eight d) nine
[EX A]: b

[EX Q]: Contemplation is the stage in which people intend to change within the next ____ months.\Question: Choose the right answer from options given a) three b) six c) eight d) seven
[EX A]:
b