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:
Reliability affects the production of goods in ____ distinct ways.\Question: Choose the right answer from options given a) one b) eight c) six d) three

Ex Output:
d


Ex Input:
Turkish citizens can enter Bosnia and stay up to ____ months without a visa.\Question: Choose the right answer from options given a) five b) seven c) four d) three

Ex Output:
d


Ex Input:
Some cultures distinguish ____ genders.\Question: Choose the right answer from options given a) four b) nine c) five d) seven

Ex Output:

c