Q5 Single choice Mark for later Regarding planning and design tools, the following statements are wrong A The planning and design tool is used for after-sales planning and cannot be used before sales B When the equipment model cannot be used, you can feedback it in the tool platform C The tool can ensure the logical consistency and data consistency of the design D In the case of large or frequent changes in the network, the old project can be retained and the new project can be designed Correct answer