A project requires showing an existing and a proposed toposurface to calculate earthwork. How should this be set up in Revit?
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A
Create the existing toposurface in the Existing phase and the proposed surface in the New Construction phase
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B
Place two separate toposurfaces on different design options
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C
Use two linked Revit files, one per toposurface condition
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D
Draw both surfaces in the same phase and use color overrides to differentiate them