Read the passage below.
[1] It is frequently argued by legal historians that the proliferation of intellectual property laws in the eighteenth century was primarily a philosophical triumph of the Enlightenment, rooted in a newfound respect for individual genius. [2] In this view, early copyright statutes were enacted to protect the inherent moral rights of authors. [3] However, an analysis of the legislative debates from that period complicates this idealistic picture. [4] The initial establishment of modern copyright protections was not principally motivated by a desire to reward authors, but rather functioned as a commercial regulation designed to dismantle the monopolistic power of traditional publishing guilds. [5] By granting limited-term rights directly to creators, lawmakers aimed to break the permanent stranglehold that a few entrenched publishers held over the book trade, thereby fostering a more competitive market.
Which sentence number contains the author's explicit main point?
Answer: 4 / Sentence 4 / Four