What describes public-domain software?

Public-domain software is defined as software that is free for public use, meaning anyone can use, modify, and distribute it without needing permission or having to pay for it. This type of software is often created with the intention of benefiting the larger community by allowing unrestricted access to its code and functionality. Since there are no copyright restrictions on public-domain software, it can be freely shared and repurposed by anyone.

In contrast, options suggesting that software must be purchased, has limited access, or is exclusively for educational purposes do not accurately represent the essence of public-domain software. The hallmark of public-domain software is its open and free nature, clearly distinguishing it from software that is commercially sold, restricted in accessibility, or confined to specific uses, all of which impose limitations that public-domain software does not.