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: China is reportedly in the top ____ nations in industrial output.\Question: Choose the right answer from options given a) seven b) ten c) three d) five

Output: b


Input: Consider Input: Insects have ____ common types of metamorphosis.\Question: Choose the right answer from options given a) six b) eight c) two d) seven

Output: c


Input: Consider Input: Braids can last up to ____ months, but varies from person to person.\Question: Choose the right answer from options given a) eight b) ten c) six d) zero


Output: c