What Are the Responsibilities of HRM to Ensure an Organization

What are the responsibilities of HRM to ensure an organization is successful?

A) having the right people, in the right places, at the right time, doing the right thing
B) ensuring that the organization is responsible in following the laws as they relate to human resources
C) having an abundant candidate pool to draw upon quickly to back-fill positions
D) to ensure succession planning is part of the management strategy