can you please help me with these questions, thanks!

18 Which of the following statements is incorrect with respect to long-term financing decisions? ed O . In long term financing decisions, performance should be measured and evaluated in terms of contribution to value. out of n O b. In long term financing decisions, an indicator of value creation is the relationship between the actual return on investment and the weighted average cost of capital. O C.- Marketers need to understand the cost of capital because every marketing project will require capital in some form and the cost of that'capital must be taken into account to evaluate the project. O d. In financing a project, a marketer has to choose between using only debt or only equity. 79 Which of the following definitions is incorrect O a. Cost of capital: The minimum return required by the providers of long-term capital ut of O b. Leverage: The use of interest-bearing debt in the long-term capital structure of an organisation O c. Optimal capital structure: The combination of debt and equity that results in the highest possible WACC. d. Weighted average cost of capitat: The overall cost of capital of an organisation based on the cost of each source of finance weighted on a suitable proportional basis, such as market value or book value