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:
Bloody diarrhea lasts for two to ____ days.\Question: Choose the right answer from options given a) nine b) five c) three d) no

Ex Output:
b


Ex Input:
Alcoholics are nearly ____ times more likely than others to die in motor vehicle crashes.\Question: Choose the right answer from options given a) ten b) eight c) six d) five

Ex Output:
d


Ex Input:
Hypertension affects nearly ____ in three adults.\Question: Choose the right answer from options given a) no b) one c) eight d) four

Ex Output:

b