Apply the basic cost estimating methods/techniques used to create cost estimates that are most appropriate. How is the Engineering cost estimating used? A. By reflecting a detailed build-up of labor, material, and overhead costs. B. By comparing a new of proposed system with a similar system in a recent past, and for which there is accurate cost and technical data. C. By extrapolating a trend from the current contract in order to estimate the final cost. By using a statistical between historical data and other variable to calculate a cost estimate