Elena Is a Marketing Manager for a Growing Internet Business

Elena is a Marketing Manager for a growing Internet business called Rainmaker Teas. Elena is researching the different types of online ads that are available to use in the launch of their five new white tea flavors.
-When checking the Web site stats, Elena sees that 40% of customers put items in their shopping cart, and then navigate away from the site. She wants to add an advertisement that appears only if the user closes the shopping cart window. She would use a(n) ____ ad.

A) pop-up
B) pop-under
C) under-over
D) over-under