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: Gases are perhaps the best understood of the ____ states of matter.\Question: Choose the right answer from options given a) three b) five c) nine d) zero
Example Output: a

Example Input: Owls have ____ toes on each foot, like most birds.\Question: Choose the right answer from options given a) no b) seven c) four d) one
Example Output: c

Example Input: Newborns can stand ____ minutes after birth and begin to follow their mother immediately.\Question: Choose the right answer from options given a) ten b) nine c) five d) six
Example Output:
c