A$.$ Step $2$: Undertake extensive evaluation and comparison using a cost benefit analysis; Step $3$:Undertake extensive research into the nature of the problem to discover what alternatives would be a good fit.B$.$ Step $2$: Undertake extensive research into the nature of the problem to discover what alternatives would be a good fit; Step $3$: Engage others in brainstorming to generate newIdeas. C$.$ Step $2$: Conduct research and use evidence$-$based analytical framework; Step $3$: Engage others in brainstorming to generate new ideas. D$.$ Step $2$: Engage others in brainstorming to generate new ideas; Step $3$: Conduct research and use evidence$-$based analytical framework.