Your company creates software products. It is introducing a new product. To determine the characteristics and features of the new product line?

In my opinion - A. Progressive elaboration

Explanation: The process of determining the characteristics and features of the product of the project is called progressive elaboration. Progressive elaboration is carried out via steps in detailed fashion.

Of course it is Progressive elaboration which means contineously improving & detailing as more details , estimates , specific information become available .

Option A Progressive Elabortaion . It is a process of refinement & detailing of project concept to detailed project / product requirements and plan. It is a continuous iterative process.

D. Plan project life cycle