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').

[EX Q]: Fluoroscopy has ____ magnification modes and image capture.\Question: Choose the right answer from options given a) zero b) two c) nine d) eight
[EX A]: b

[EX Q]: Pupae usually transform into adults ____ to three days later.\Question: Choose the right answer from options given a) one b) two c) no d) eight
[EX A]: b

[EX Q]: Coefficients are positive numbers with up to ____ decimal places.\Question: Choose the right answer from options given a) two b) one c) nine d) ten
[EX A]:
a