Final answer:
The function that takes the length of a race and returns the time needed to complete it should be named Time(length).
Step-by-step explanation:
The function that takes the length of a race and returns the time needed to complete it could be named Time(length). This is because the function is being given the length of the race as input and the time needed to complete it is the output. The name Time(race) would imply that the function takes a race as input, which is not the case. Therefore, Option B is the correct choice.
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