can we have protected element as a namespace member? eg namespace mine { protected class test { } }

  1. a. yes,all access specifiers are valid for namespace members

  2. b. No,only private access specifiers are possible

  3. c. No,implicitly all members are protected

  4. d. No,the namespace allows only public and internal elements as its members


Correct Option: D

AI Explanation

To answer this question, you need to understand the concept of access specifiers in C++ and how they apply to namespace members.

In C++, access specifiers (such as public, private, and protected) are used to control the visibility and accessibility of class members. However, access specifiers do not apply to namespace members.

Namespace members are by default accessible to all code within the same namespace. They do not have access specifiers like classes do. Therefore, it is not possible to have a protected element as a namespace member.

Let's go through each option to understand why it is correct or incorrect:

Option A) Yes, all access specifiers are valid for namespace members - This option is incorrect because access specifiers do not apply to namespace members.

Option B) No, only private access specifiers are possible - This option is incorrect because access specifiers do not apply to namespace members. Private access specifier is specific to class members, not namespace members.

Option C) No, implicitly all members are protected - This option is incorrect because access specifiers do not apply to namespace members. The concept of implicit protection is not applicable to namespace members.

Option D) No, the namespace allows only public and internal elements as its members - This option is correct because namespace members are by default accessible to all code within the same namespace. They do not have access specifiers like classes do. The only valid access specifiers for namespace members are public and internal.

The correct answer is D) No, the namespace allows only public and internal elements as its members. This option is correct because access specifiers do not apply to namespace members.

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