Answer:
c. the department manager may not want to accept the project because it will lower the overall ROI for the department.
d. the project should be accepted by the company because it increases overall residual income
Step-by-step explanation:
Base on the scenario been described in the question, both option c and d are true because the department manager may not want to accept the project because it will lower the overall ROI for the department and the project should be accepted by the company because it increases overall residual income