Making security awareness material easy and compelling to read is the most important success factor. Users must be able to understand, in easy terms, complex security concepts in a way that makes compliance more accessible. Choice A would also be important but it needs to be presented in an adequate format. Detailed security policies might not necessarily be included in the training materials. Senior management endorsement is important for the security program as a whole and not necessarily for the awareness training material.

Explanation/Reference:
Explanation:
Cardholder data should be encrypted using strong encryption techniques. Hardening would be secondary in importance, while nonrepudiation would not be as relevant. Authentication of the point-of-sale (POS) terminal is a previous step to acquiring the card information.