What is Default access modifier for class and struct members is private?

The default access modifier for class and struct members is private. This means that if no access modifier is specified, the member is considered private by default. Private members are accessible only within the same class or struct. If you want to change the accessibility of a member, you can explicitly specify one of the access modifiers like public, protected, internal, or protected internal. Remember that specifying the access modifier explicitly is a good practice for code readability and maintainability.