The supported file types for the DocumentPath property in the Classify Document Scope activity include .png, .gif, .jpe, .jpg, .jpeg, .tiff, .tif, .bmp, and .pdf. Among the provided options, option C: .pdf, .jpeg, .raw, .tif, is the only one that contains exclusively supported file types: .pdf, .jpeg, and .tif. Although .raw is not typically a supported type, the inclusion of three supported formats makes this the closest match compared to the other options which include unsupported types like .bmp and .psd.