I am writing a paper and need to explain why I should use WACC to discount cash flows, its limitations and also show an example. Need help, please

Que: Why I should use WACC to discount cash flows, its limitations and also show an
example.
Solution:
WACC is the cost of the funds employed in the business. There are two forms in which the funds
can be raised i.e. debt and equity. WACC is the minimum return which the firm must earn from a
project to create shareholders wealth. If the return generated by the project is less than the firms
WACC this means that the return is not sufficient to cover the cost of funds and it will destroy
shareholders wealth. Firms WACC should be used to evaluate the project as this is the minimum
return which the firm expects from the project and if the firms earn this return it will be...