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: Double price is based on two golfers sharing ____ room.\Question: Choose the right answer from options given a) one b) zero c) six d) nine

Output: a


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: Primary vaccination consists of ____ intramuscular doses of vaccine.\Question: Choose the right answer from options given a) no b) six c) three d) one


Output: c