Consider the following statements about namespaces in programming:
(i) Namespaces provide a way to group identifiers and avoid naming conflicts in large projects. (ii) Using the using directive in C++ eliminates the need to qualify names explicitly within the namespace. (iii) In C++, two namespaces cannot have the same identifier within them.
Which of the following options correctly classifies the statements as true or false?

Correct option is A

· Statement (i): True Namespaces are used to group identifiers such as classes, functions, and variables to avoid naming conflicts in large programs, especially when combining code from multiple libraries.
· Statement (ii): True The using directive in C++ (e.g., using namespace std;) allows identifiers within a namespace to be used without explicit qualification, simplifying the code.
· Statement (iii): False Multiple namespaces can contain the same identifiers, and they will remain distinct as long as they belong to different namespaces.
For example:

Important Key Points:
1. Namespaces are a feature of C++ to resolve naming collisions in large programs or projects with multiple libraries.
2. The using directive can lead to potential ambiguity if two namespaces have conflicting identifiers (e.g., value from both A and B).
3. Identifiers in different namespaces are fully qualified by their namespace name (e.g., A::value, B::value).
Knowledge Booster:
· namespace std: The standard namespace in C++ that contains common features like cout, cin, and string.
· Nested namespaces: C++ allows namespaces to be nested, e.g., namespace A::B {}.
· Fully Qualified Names: Accessing identifiers explicitly using the namespace, e.g., std::cout.