Which of the following statements about recycled paper is correct?
a. Old toner and ink cannot be removed from the waste paper.
b. Recycled paper is more expensive than regular paper.
c. Recycled paper is less white and less age-resistant than regular paper.
d. Because recycled paper is dusty, it is virtually unusable for toner-based printing.
e. Recycled paper can also contain fiber-rich waste products other than paper.