Which of the Following Is Correct About Social Media Monitoring

Which of the following is correct about social media monitoring?

A) It is a form of observation marketing research that combines a consumer's online activity with psychographic and demographic profiles compiled in databases.
B) It is the use of automated tools to monitor online buzz,chatter,and conversations.
C) It is the study of human behavior in its natural context; involves observation of behavior and physical setting.
D) It is a research method that relies on four types of observation: people watching people,people watching an activity,machines watching people,and machines watching an activity.