4 :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?This type of question contains radio buttons and checkboxes for selection of options. Use Tab for navigation and Enter or space to select the option. option A Analogous estimating option B T-shirt sizing option C Parametric estimating option D Bottom-up estimating