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What distinguishes open-source software from proprietary software?

What distinguishes open-source software from proprietary software?
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  • A Open source software is free, while proprietary software requires purchase.
  • B Open-source software is more secure than proprietary software.
  • C Open-source software is more secure than proprietary software.
  • D Open source software allows modification and redistribution, while proprietary software does not.
Correct Answer: Option D
Explanation:
The defining difference is access to the source code. Open-source software makes its source code freely available to the public, allowing anyone to modify, improve, and redistribute it. Proprietary software keeps its source code secret and legally restricts modification.

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