Which of the following is a disadvantage of issuing preferred stock from the common stockholders' perspective?

	a.	There is a seniority of preferred stockholder's claim over common stockholders.
	b.	The preferred stockholders have superior voting rights in the selection of board of directors.
	c.	The preferred stockholders are always paid a higher proportion of dividend payments.
	d.	Issuance of preferred stocks will result in a higher risk to the common stock, which is a disadvantage of common stockholders.