Define capital structure as the composition of a company's funding sources. $$ "Capital structure is the specific mix of debt and equity that a company uses to finance its operations and growth. $"$

What are the different components of capital structures, such as debt and equity financing.

Whats the relevance of capital structures in optimizing the cost of capital and financial risk.

Explain how WACC represents the average cost of funds for a company's investment projects.

Discuss the importance of considering WACC as the discount rate in NPV and IRR calculations.