The purpose of the stage$-$gate model of success is to $...$

A$)$ weigh criteria and so to determine if projects should be approved

B$)$ Develop and integrated and coordinated long$-$term plan of actions

C$)$ Ensure that the organization is investing time and resources on worthwhile projects that contribute to its mission and strategy

D$)$ assess the suitability of a project portfolio for the company's mission and goals.