Alpha Cleaning Equipment Co

Alpha Cleaning Equipment Co.is developing a new street sweeper machine.It has a business plan and a detailed plan of action for the machine.According to the stage-gate process,what is the next stage of the project?

A) Launch the product by producing it commercially and selling it.
B) Verify and validate the new product, its marketing, and production.
C) Begin the actual design and development including the details of manufacturing, marketing, and operations.
D) Build a business case to justify the project.