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Which of the following statements is correct about a namespace in C#.NET?

Namespaces help us to control the visibility of the elements present in it.
A namespace can contain a class but not another namespace.
If not mentioned, then the name 'root' gets assigned to the namespace.
It is necessary to use the using statement to be able to use an element of a namespace.
We need to organise the classes declared in Framework Class Library into different namespaces.

Correct Answer: Namespaces help us to control the visibility of the elements present in it.

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