Final answer:
The CBID spiral model of the design process does not have a last step among the given options.
Step-by-step explanation:
The CBID spiral model of the design process is a sequential process where each step follows the previous one. However, the question asks about the last step in the design process, which is not represented in the provided options. The options presented are related to different steps in the design process, such as testing and evaluating, refining the design, and implementing. None of these options represent the last step in the process. Therefore, none of the statements are true.