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: Some families have two daddies or ____ mommies.\Question: Choose the right answer from options given a) nine b) seven c) zero d) two

Output: d


Input: Consider Input: Hamsters can live to be three to ____ years old.\Question: Choose the right answer from options given a) four b) two c) three d) nine

Output: a


Input: Consider Input: Obesity affects ____ in five children in the United States.\Question: Choose the right answer from options given a) one b) four c) two d) nine


Output: a