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: Scorpions also have ____ legs.\Question: Choose the right answer from options given a) eight b) zero c) nine d) ten

Output: a


Input: Consider Input: Bloody diarrhea lasts for two to ____ days.\Question: Choose the right answer from options given a) nine b) five c) three d) no

Output: b


Input: Consider Input: Humanists encourage critical examination of all ideas and ____ concepts are regarded as sacred.\Question: Choose the right answer from options given a) four b) seven c) six d) no


Output: d