Stakeholders are defined as $\_\_\_\_\_\_\_\_\_\_\_\_.$

a$.$ Members of the project team who are responsible for creating project deliverables.

b$.$ "Senior managers who serve in a formal role given authority and responsibility for successful completion of a project deemed strategic to an organization's success."

c$.$ People and groups who can impact the project or might be impacted by the work of or results of the project.

d$.$ Project customers who define the characteristics of the product scope and provide the requirements for the project deliverables.