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:
Giraffes sleep less than ____ hours a day.\Question: Choose the right answer from options given a) two b) six c) seven d) ten

Ex Output:
a


Ex Input:
Poodles have ____ legs.\Question: Choose the right answer from options given a) one b) four c) six d) nine

Ex Output:
b


Ex Input:
Older men commit suicide ____ to six times the rate worldwide as do women, but there are anomalies.\Question: Choose the right answer from options given a) eight b) two c) four d) no

Ex Output:

c