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: Many scientists believe the neutrino has ____ mass at all.\Question: Choose the right answer from options given a) eight b) zero c) two d) no

Output: d


Input: Consider Input: Foresters usually work ____ hours a day, five days a week.\Question: Choose the right answer from options given a) six b) five c) seven d) eight

Output: d


Input: Consider Input: Enzyme coagulation occurs in ____ phases.\Question: Choose the right answer from options given a) seven b) ten c) one d) two


Output: d