What should the marketer do next to identify the root cause?

A marketer notices that the average number of IDs linked per profile has increased significantly over the past couple weeks. In the Identity graph viewer, the marketer sees that different emails that should belong to different profiles are stitched together.

What should the marketer do next to identify the root cause?
A . Use the Real-time Profile Ul to retrieve the Identity Map linked to the profile
B . Use the Identity API to get the details of the Identity Namespace definition
C . Use the Identity API to list the Identity Mappings for the email
D . Use Identity graph viewer to retrieve the list of data sources

Answer: C