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: Trappers have ____ genders and reproduce sexually.\Question: Choose the right answer from options given a) zero b) two c) five d) one

Output: b


Input: Consider Input: Takins can even balance on their hind hooves to nibble on vegetation ____ feet above ground.\Question: Choose the right answer from options given a) two b) no c) nine d) eight

Output: d


Input: Consider Input: Secondhand smoke can produce ____ times the pollution of a busy highway when in a crowded restaurant.\Question: Choose the right answer from options given a) six b) five c) two d) seven


Output: a