Which of the Following Is a Principle Guiding How Ads

Which of the following is a principle guiding how ads should be laid out?

A) No single element of the ad should dominate.
B) The ad should appear unusual and asymmetrical for eye appeal.
C) The space within the ad should be broken into asymmetrical units.
D) A directional pattern should be evident so readers know in what sequence to read.
E) There should be a force that holds the ad together and gives it interesting variation.