Q15 Single choice Mark for later How does Send Time Optimization (STO) help marketers optimize their marketing campaigns? A STO predicts the best time to send a message for each contact through Journey Builder B STO uses all commercial and transactional send data to determine trends in message engagement and optimize sends C STO analyzes the best time to send a scheduled batch send from Email Studio based on the content in the email D STO can help send SMS messages at the time individuals are most likely to engage with the message Correct answer