HRMN 400 Discussion - Strategic HR

I need the following three questions answered using ONLY the attached course resources and it is due TOMORROW. 

a) What internal and external factors have influenced the Human Resource Management function over the past ten years toward serving in the role of a strategic partner or leader in the organization? Discuss some positive and negative contextual influences that will continue to impact the HR function from today forward.

b) Explain what it means to be an effective HR strategic business partner. Why is it important for HR to be involved in all aspects of the strategic planning process? Discuss one example of a human resource management strategy that supports an organizational strategy.

c) What factors could be holding HR professionals back from serving in the strategic HR role? Share some ideas or strategies for enabling HR to be more successful toward working in a strategic capacity.