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 Input:
Nymphs emerge in ____ to seven days and flatten themselves against the leaf to feed.\Question: Choose the right answer from options given a) one b) five c) nine d) two

Ex Output:
b


Ex Input:
Coffee trees reach maturity between ____ and four years when their clusters of fruit turn deep red.\Question: Choose the right answer from options given a) no b) three c) nine d) five

Ex Output:
b


Ex Input:
Female cats have ____ X's in each cell.\Question: Choose the right answer from options given a) five b) two c) one d) ten

Ex Output:

b