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: Quarks also come in ____ 'colours', terms for a property a little like electrical charge.\Question: Choose the right answer from options given a) three b) nine c) six d) no

Output: a


Input: Consider Input: Uncontrolled diabetes can increase risk by up to ____ times.\Question: Choose the right answer from options given a) five b) four c) seven d) eight

Output: b


Input: Consider Input: Carbon monoxide remains in the blood for up to ____ months after death.\Question: Choose the right answer from options given a) nine b) six c) three d) five


Output: b