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: Bulls can stand as tall as ____ feet at the shoulders.\Question: Choose the right answer from options given a) one b) five c) seven d) four

Output: b


Input: Consider Input: Healthcare providers diagnose ____ general types of insomnia.\Question: Choose the right answer from options given a) two b) eight c) one d) three

Output: a


Input: Consider Input: Salvation also is ascribed to all the ____ persons, who are equally concerned in it.\Question: Choose the right answer from options given a) four b) two c) seven d) three


Output: d