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: Most bioluminescence is blue for ____ reasons.\Question: Choose the right answer from options given a) seven b) two c) four d) zero

Output: b


Input: Consider Input: Blankets can take up to ____ days to dry in the colder months.\Question: Choose the right answer from options given a) eight b) three c) two d) nine

Output: b


Input: Consider Input: Pollen grains have ____ very important attributes.\Question: Choose the right answer from options given a) two b) six c) no d) ten


Output: a