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: Lines of force are ____ dimensional, surrounding a bar magnet on all sides.\Question: Choose the right answer from options given a) eight b) three c) zero d) no

Output: b


Input: Consider Input: Sculpture involves the ____ different processes of carving and modeling.\Question: Choose the right answer from options given a) five b) three c) two d) ten

Output: c


Input: Consider Input: Corals only grow by ____ centimetres a year.\Question: Choose the right answer from options given a) six b) ten c) two d) zero


Output: c