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: Black people are four to ____ times more likely to be stopped and searched.\Question: Choose the right answer from options given a) three b) five c) one d) four

Output: b


Input: Consider Input: National immunization vaccinates all children under ____ against polio.\Question: Choose the right answer from options given a) zero b) four c) ten d) five

Output: b


Input: Consider Input: Tigers can see in the dark ____ times better than humans can.\Question: Choose the right answer from options given a) nine b) one c) zero d) six


Output: d