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: Diploid cultivars have ____ alleles.\Question: Choose the right answer from options given a) eight b) six c) two d) five
Example Output: c

Example Input: Lions have ____ distinct vocalizations including roars, grunts and growls.\Question: Choose the right answer from options given a) eight b) six c) four d) nine
Example Output: d

Example Input: Pelicans use ____ different ways to feed.\Question: Choose the right answer from options given a) no b) nine c) one d) two
Example Output:
d