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: Popular racism seems most prevalent in Italy which saw ____ deaths at the hands of racists.\Question: Choose the right answer from options given a) five b) two c) one d) four
Example Output: d

Example Input: Snowflakes are crystals that have many different shapes, but each snowflake has ____ points on it.\Question: Choose the right answer from options given a) six b) nine c) one d) seven
Example Output: a

Example Input: Traffic accidents are the number ____ cause of death for children, ages five to fifteen.\Question: Choose the right answer from options given a) eight b) zero c) six d) one
Example Output:
d