A. Public domain means whose exclusive intellectual rights have expired , have been forfeited, have been expressly waived, or are incapable. So if someone owned a building but had their rights for the building terminated, that building is now a public domain until someone buys the building. So, after the building has been handed over because of the terminated rights of the owner, it is now a "Public Domain".
How the author's discussion of cybercrime contribute to the central idea of the text is: B. It emphasizes that digital financial data can be stolen.
<h3>What is Cybercrime?</h3>
Cybercrime can be defined as the way in which hackers or unauthorized person access data or information store an a computer system or internet or when confidential or sensitive information store on a computer is access by authorized user.
How the author's discussion of cybercrime contribute to the main idea was that the author lay emphasizes on how hackers can access digital financial data store on a network or computer system.
Therefore How the author's discussion of cybercrime contribute to the central idea of the text is: B. It emphasizes that digital financial data can be stolen.
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