Correct Answer: (iii) <style>

Explanation:

• In HTML, internal (embedded) Cascading Style Sheets are defined inside the <style> tag, placed within the <head> section of the HTML document.
• <script> is used to embed or reference executable JavaScript code.
• <css> is not a valid HTML element.

Example:

<head>
  <style>
    body {
      background-color: #f5f6f2;
      color: #1b2430;
    }
  </style>
</head>