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: Kabbalists group the simple letters into ____ triplets.\Question: Choose the right answer from options given a) four b) no c) ten d) three

Output: a


Input: Consider Input: Beer is made from fermented grains and has an alcohol content of ____ to six percent.\Question: Choose the right answer from options given a) zero b) three c) two d) ten

Output: b


Input: Consider Input: Most stress fractures heal with a period of rest for four to ____ weeks.\Question: Choose the right answer from options given a) eight b) zero c) one d) no


Output: a