Which of the Following Statements Is True About Stealth Marketing

Which of the following statements is true about stealth marketing?

A) It occurs when consumers are aware that they are subject to a marketing campaign.
B) It refers to situations where consumers are subject to directed commercial activity without their knowledge.
C) It occurs when consumers pay little or no attention to billboards while speeding past a highway.
D) It is not an intentional effort to hide the true marketing element of the interaction.