Which of the following is true if the property value of a name-value pair added by an element with an itemprop attribute is a time element ?

• A. The value is the element’s datetime value.
• B. The value is the value of the element’s content attribute, if any, or the empty string if there is no such attribute.
• C. The value is the value of the element’s value attribute, if it has one, or the empty string otherwise.
• D. The value is the element’s textContent.