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').

[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
[A]: b


[Q]: Pistillate flowers have a compound ovary with ____ locules topped by three sticky, sessile stigmas.\Question: Choose the right answer from options given a) zero b) three c) six d) seven
[A]: b


[Q]: Smokers die an average of six to ____ years earlier than nonsmokers.\Question: Choose the right answer from options given a) one b) ten c) six d) eight
[A]:
d