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 value of the element s content attribute, if any, or the empty string if there is no such attribute
• B. The value is the element s textContent
• C. The value is the element s datetime value
• D. The value is the value of the element s value attribute, if it has one, or the empty string otherwise
• E. None of these