Final answer:
Downloading music without paying is illegal as it constitutes copyright infringement, and unethical as it fails to acknowledge the efforts and rights of the creators.
Step-by-step explanation:
If Marcus downloads music without paying for it, this action is generally both illegal and unethical. Legally, the downloading of copyrighted music without paying for it or without the permission of the copyright holder is a form of intellectual property theft known as piracy. Depending on the jurisdiction, this can lead to legal penalties such as fines or more serious consequences. From an ethical standpoint, this practice is unfair to the artists and companies who invest time and resources into creating and distributing the music, making it unethical as it disrespects their rights and the value of their work.
The correct answer to the question is C) Both.