Which of the following statements is true?

Select one or more. There can be more than one right answer!!!!

	a.	Investors typically accept a lower risk-adjusted rate of return on debt capital than on equity capital because debt is typically less risky because fixed claims bear less residual risk than equity claims.
	b.	Investors typically accept a lower risk-adjusted rate of return on debt capital than on equity capital because in the United States and most other countries, debt capital costs such as interest expense are tax deductible for the firm, whereas equity capital costs such as dividends are not.
	c.	If a stable, financially healthy, profitable, tax-paying firm that has been financed with all-equity and no debt decides to add a reasonable amount of debt to its capital structure, it should experience a drop in WACC because it will have a higher proportion of debt with a lower cost of capital than equity.
	d.	Technology companies tend to carry relatively high proportions of debt in their capital structures because of their low unlevered equity betas.