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:
Some infected people have ____ symptoms at all.\Question: Choose the right answer from options given a) four b) eight c) no d) five

Ex Output:
c


Ex Input:
Unsafe acts cause ____ times as many accidents as unsafe conditions.\Question: Choose the right answer from options given a) no b) eight c) one d) four

Ex Output:
d


Ex Input:
Cucumbers have ____ different flowers, male and female.\Question: Choose the right answer from options given a) two b) seven c) three d) four

Ex Output:

a