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').

Input: Consider Input: Classes play ____ distinct roles in object-oriented programming.\Question: Choose the right answer from options given a) eight b) zero c) two d) no

Output: c


Input: Consider Input: Blood pressure is measured by ____ numbers.\Question: Choose the right answer from options given a) zero b) eight c) two d) seven

Output: c


Input: Consider Input: Circumcision is known to cause sleep disturbances for at least ____ days.\Question: Choose the right answer from options given a) five b) eight c) three d) nine


Output: c