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: All loci have ____ or two alleles.\Question: Choose the right answer from options given a) no b) six c) four d) one

Output: d


Input: Consider Input: TriMetal Irons Discover the benefits of ____ different metals.\Question: Choose the right answer from options given a) five b) seven c) no d) three

Output: d


Input: Consider Input: Some dentists prefer using the oral rinse for three to ____ days at a time.\Question: Choose the right answer from options given a) five b) eight c) six d) four


Output: a