$($Scenario $12-1)$ Blackberry Valley's ad agency has come up with a series of ideas through which they are planning to target people who are health$-$conscious and are looking for organic options. The agency has decided to use the social media to find out detailed behavioral information about customers. The agency also plans to turn these individuals into advocates of their brand. Which of the following is the company using?

a$.$ Continuous scheduling

b$.$ Big Data

c$.$ Media mix

d$.$ Below$-$the$-$line promotions