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: Hummingbirds feed every ____ to fifteen minutes from sun-up to sundown.\Question: Choose the right answer from options given a) nine b) seven c) four d) ten

Output: d


Input: Consider Input: Laparoscopic surgery is performed via three or ____ small incisions in the abdomen.\Question: Choose the right answer from options given a) nine b) six c) five d) four

Output: d


Input: Consider Input: Baseball has streaks and teams play ____ or four games in a row, on consecutive days.\Question: Choose the right answer from options given a) eight b) no c) three d) zero


Output: c