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: Ankle joint has ____ degrees of freedom.\Question: Choose the right answer from options given a) seven b) eight c) four d) three
Example Output: d

Example Input: Conglomerate integration is when ____ apparently unconnected companies merge.\Question: Choose the right answer from options given a) two b) six c) no d) three
Example Output: a

Example Input: Breast cancer occurs in females in ____ generations.\Question: Choose the right answer from options given a) four b) three c) two d) six
Example Output:
a