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').

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

Example Input: All cattle have a ____ chambered stomach, consisting of a rumen, reticulum, omasum and abomasum.\Question: Choose the right answer from options given a) ten b) four c) six d) two
Example Output: b

Example Input: Diabetes can have ____ symptoms at all and if left untreated can damage the kidneys and eyes.\Question: Choose the right answer from options given a) four b) ten c) seven d) no
Example Output:
d