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: Females have two X-chromosomes, ____ from each parent.\Question: Choose the right answer from options given a) ten b) four c) one d) zero
Example Output: c

Example Input: Fluoroscopy has ____ magnification modes and image capture.\Question: Choose the right answer from options given a) zero b) two c) nine d) eight
Example Output: b

Example Input: Sportswear is more than ____ times the size of the dress shirt market.\Question: Choose the right answer from options given a) one b) six c) zero d) three
Example Output:
d