Which of the four criteria applied when a fair use defense is used in a copyright case carries the most weight?

Question

Quizplus · Accepted Answer

The effect on the market value of the copyrighted work carries the most weight in a fair use defense case. This is because if the use of the copyrighted work affects the market value of the original work, it is less likely to qualify as fair use. The other criteria (the nature of the copyrighted work, the amount of the work used, and the purpose of the use) are also considered, but their weight in the analysis varies depending on the specific case.

Which of the Four Criteria Applied When a Fair Use