To add a property to an item, the itemprop attribute is used on one of the item’s descendants. Markup without the microdata-related attributes does not have any effect on the microdata model.
Answer: Option 1
If the element is a data element, the value is the value of the element’s value attribute, if it has one, or the empty string otherwise.
Answer: Option 4
It allows a vocabulary to define a global identifier for a microdata item, for example an ISBN number on a book. Use itemid on the same element...
Answer: Option 1
The itemscope attribute is a boolean attribute. An element with the itemscope attribute specified creates a new item, a group of name-value pairs.
