Which of the Following Is an Example of Management by Wandering

Which of the following is an example of management by wandering around?

A) Paul walks to the mail room twice each day,stopping along the way to chat with his friends.
B) Undercover Boss is a reality show in which CEOs perform entry level jobs incognito in their own companies.
C) Mary asks her employees to attend a weekly lunch meeting,with time for informal discussion.
D) Hans briefly shakes the hand of each employee when he visits a factory.
E) All of these.