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: Ground beef can last up to four months, and chicken parts can stay good for ____ months.\Question: Choose the right answer from options given a) ten b) no c) nine d) zero
Example Output: c

Example 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
Example Output: b

Example Input: Television has ____ dimensions to work with, sight and sound.\Question: Choose the right answer from options given a) four b) two c) no d) zero
Example Output:
b