You are working in a balanced matrix organization where stakeholder influence is very high and tricky for your project's success. One of the influential and high-power stakeholders warns you about various problems that could occur after the implementation of the current project. What should you do in this situation as a part of a stakeholder engagement strategy? 

a. Seek expert judgment about dealing with difficult people

b. Refer to lessons learned from previous projects to avoid the same issues 

c. Apply negotiation skills and political awareness to regain support from this stakeholder 

d. Involve him in team meetings so that he understands the project status