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: Trinity comes from tri-unity which means ____ in one.\Question: Choose the right answer from options given a) four b) three c) eight d) zero
Example Output: b

Example Input: Most marine sediments are of ____ basic types.\Question: Choose the right answer from options given a) three b) ten c) two d) nine
Example Output: c

Example Input: Most children present a normal profile by ____ years of age.\Question: Choose the right answer from options given a) ten b) seven c) six d) four
Example Output:
c