Q. Every HTML element may have an ____________ attribute specified.

Explanation by: Official MCQ Buddy

In HTML5, the itemscope attribute is used in Microdata API to define that an element and its children contain metadata for a specific item.
It is a global attribute, meaning it can be used on any HTML element.
itemscope is often used with itemtype to specify what type of item is being described.
Example:
<div itemscope itemtype="https://schema.org/Person">
  <span itemprop="name">John Doe</span>
</div>
Here, the div element defines a microdata item using itemscope, and itemtype specifies that it follows Schema.org's Person type.
Why Other Options Are Incorrect?
(A) itemtype ❌
itemtype is used to specify the type of item but must be used with itemscope, so it's not universally applicable to every HTML element.
(B) relevant types ❌
No such attribute exists in HTML.
(D) none of the mentioned ❌
itemscope is a global attribute, so this option is incorrect.
Final Answer:
✅ (C) itemscope