If a namespace is present in a library then which of the following is the correct way to use the elements of the namespace?

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If a namespace is present in a library then which of the following is the correct way to use the elements of the namespace? Answer: Add Reference of the namespace. Import the namespace. Use the elements of the namespace.

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This question is part of 🧩 C# Programming within the broader 💻 Programming subject and appears in the DemoPaper-Pakistan preparation collection. Reviewing the answer together with nearby questions helps reinforce the underlying concept and identify how it may appear in competitive exams.