You have an application which allows users to post articles. You want the web crawlers to use the time element to analyze when a given article was posted, to detect how often a website changes. What is the correct implementation of a time element/tag in HTML5?
Note: There can be multiple correct answers to this question.
Q 2. Suppose that you have a table that contains about 500 rows, and you want to invoke a function 'foo' every time a row is clicked. Which of the following is the most efficient way to do that?