As a digital marketing manager tasked with creating a comprehensive strategy for an upcoming advertising campaign, Richard implemented programmatic advertising, targeting users based on their online activities, such as website visits, search queries, and interactions with online content. This data is gathered through cookies and other tracking mechanisms. Despite generating high engagement rates, the campaign receive backlash from users and regulatory authorities for breaching data privacy regulations. What type of advertising is Richard employing?O Measurable targetingO Behavioral targetingO Performance targetingO Target efficiencyO Contextual targeting