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

Namespaces can be nested only up to level 5.
A namespace cannot be nested.
There is no limit on the number of levels while nesting namespaces.
If namespaces are nested, then it is necessary to use using statement while using the elements of the inner namespace.
Nesting of namespaces is permitted, provided all the inner namespaces are declared in the same file.

Correct Answer: There is no limit on the number of levels while nesting namespaces.

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