ControlChars.NewLine constant is a . . . . . . . . constant.

The correct answer is: C. Character

A character is a single letter, digit, or symbol. It is represented by a Unicode code point.

A pure constant is a constant that cannot be changed after it is initialized.

An invariable constant is a constant that cannot be changed after it is declared.

An intrinsic constant is a constant that is defined by the language itself.

The ControlChars.NewLine constant is a character constant that represents the newline character. It is defined as the Unicode code point U+000A.

Here is an example of how to use the ControlChars.NewLine constant:

Console.WriteLine("Hello, world!");
Console.WriteLine();
Console.WriteLine("This is a new line.");

This code will print the following output to the console:

“`
Hello, world!

This is a new line.
“`