From an analytical perspective, which is the best description of the strategic management process?

a$.$ The full set of commitments, decisions, and actions firms take to achieve strategic competitiveness and earn above$-$average returns.

b$.$ The actions a company takes to implement a chosen strategy.

c$.$ The unique resources and capabilities of a firm that are the critical link to strategic competitiveness.

d$.$ The quality of a firm's relationships with internal and external constituencies $($stakeholders$)$ that can lead organizations to achieve above$-$average returns.