[amp_mcq option1=”@media” option2=”@charset” option3=”@font-face” option4=”None of the mentioned” correct=”option2″]
The correct answer is: B. @charset
The @charset rule is used to specify the character encoding of the style sheet. It is a single rule that can be used in an external sheet to define character set encoding of the style rules and values.
The @media rule is used to specify which media types a style sheet should apply to. It is a rule that can be used in an external sheet or in an inline style sheet.
The @font-face rule is used to define a custom font to be used in a document. It is a rule that can be used in an external sheet or in an inline style sheet.
The None of the mentioned option is incorrect because it does not specify a valid CSS rule.