<em>Brainstorming refers to thinking and developing ideas and solutions to problems</em>. It involves a free-thinking approach and putting oneself in the context of the problem you are attempting to solve. You can use the empathy maps to combine ideas from interviewing other people on the same. This stage is followed by defining the problem, concept generation, developing a solution, constructing a testing a prototype, evaluating the solution and finally presenting the solution.
Answer choice A is incorrect because it is the last stage .
Answer choice B is incorrect because it is the second stage.
Answer choice D is incorrect because it is step 5 and 6.