The Obligations of an Investor-Owned Company's Board of Directors in the Strategy-Making,strategy-Executing

The obligations of an investor-owned company's board of directors in the strategy-making,strategy-executing process include

A) coming up with compelling strategy proposals to debate against those put forward by top management.
B) taking the lead in formulating the company's strategic plan but then delegating the task of implementing and executing the strategic plan to the company's CEO and other senior executives.
C) taking the lead in developing the company's business model and strategic vision.
D) overseeing the company's financial accounting and financial reporting practices and evaluating the caliber of senior executives' strategy-making/strategy-executing skills.
E) approving the company's operating strategies,functional-area strategies,business strategy,and overall corporate strategy.