You are estimating the cost of an activity on your project, and you come across some documentation from a prior project that would be very helpful. This activity is almost identical to the activity performed on that prior project, so you can use those figures as a direct comparison, especially in terms of scope, risks, and project team requirements. Which of the following tools provides the most accurate cost estimates?

A Parametric estimating

B Bottom$-$up estimating

C Analogous estimating

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