The main activity(ies) of Designer in CAD is/are: A. Control of the design process in information distribution. B. Application of creativity, ingenuity, and experience. C. Organisation of design information D. All of the above E. None of the above

The correct answer is D. All of the above.

A designer in CAD is responsible for the control of the design process in information distribution. This includes the creation and management of design data, as well as the communication of design information to other stakeholders. The designer must also apply creativity, ingenuity, and experience to the design process in order to create innovative and effective solutions. Finally, the designer must organize design information in a way that is efficient and easy to use.

Option A is correct because the designer is responsible for the control of the design process in information distribution. This includes the creation and management of design data, as well as the communication of design information to other stakeholders.

Option B is correct because the designer must apply creativity, ingenuity, and experience to the design process in order to create innovative and effective solutions.

Option C is correct because the designer must organize design information in a way that is efficient and easy to use.

Option E is incorrect because all of the above are correct.