To enter a comment in a C++ program, you begin the comment with _____ A. ** B. && C. \\ D. @ E. //

The correct answer is E. //

A comment is a piece of text that is ignored by the compiler. It is used to explain the code to other programmers or to yourself. To enter a comment in a C++ program, you begin the comment with two forward slashes (//). The comment can be any length and can contain any characters, but the compiler will ignore it.

The other options are incorrect because they are not valid C++ keywords.

• ** is a
  Join Our Telegram Channel
  multiplication operator.
• && is a
  Subscribe on YouTube
  logical AND operator.
• \ is an escape character.
• @ is a special character that can be used to define a macro.

I hope this helps!