An act of copying the work or ideas of another person and presenting it as his own is called:

• A. Plagiarism
• B. Piracy
• C. Counterfeiting
• D. Plagiarizing

Answer: (A)

Plagiarism is presenting someone else's work or ideas as your own. This happens when you copy text or closely imitate someone else’s ideas without giving proper credit, which misleads readers about who created the work and breaches honesty and fairness. In school and professional settings, you show your own contributions by citing sources and quoting material when appropriate, so attribution makes it clear what you added versus what you borrowed.

The other terms describe different things: piracy refers to stealing or distributing copyrighted material like software or media; counterfeiting means making fake money or goods to fool others; plagiarizing is the verb form of the act, but the noun used to name the wrongdoing in this context is plagiarism.