Audience C
Education: Marketing Degree, Marketing Research Degree, Information technology and Advertising Degree, Etc.
Age: 20-35
Employment: Marketing Director, Social Media Director, Etc.
Employer: Sotheby's, Compass, etc
Interests: Photography, Art, Design, Architecture, Etc.
Look-Alike Audience
This is a fun one. Instead of targeting a specific demographic based on parameters that you set yourself. You gather the emails of past clients/leads and upload them to the ad creation back end. Facebook will check if those emails are associated with a facebook/instgram account. If it is associated, it will pull all of the demographic information and cross-reference that data with everyone else in that list and determine what the most common factors are.
Essentially it is just cross-referencing everyone's account data and determining the things they all have in common. Then you target those parameters