Which of the following are guideposts for determining fair use?
I. Amount and substantiality used.
II. Effort used by the author to create the work.
III. Purpose and nature of the use.
IV. Market effect on the work's value.
Multiple Choice
a. II and III
b. II, III, and IV.
c. I, II, and III.
d. I and IV
e. I, ll, and IV