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

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

Answer: Option A

Explanation:

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