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]: China has about ____ in four of all smokers in the world.\Question: Choose the right answer from options given a) one b) seven c) ten d) six
[EX A]: a

[EX Q]: Fryers have ____ thermostats.\Question: Choose the right answer from options given a) five b) three c) two d) one
[EX A]: c

[EX Q]: Chimeras are ____ headed creatures that shoot fire from all three heads, damaging a wide area.\Question: Choose the right answer from options given a) three b) one c) eight d) six
[EX A]:
a