How should you maintain users’ privacy?

You are working on a sensitive project involving private user data. You have set up a project on Google Cloud Platform to house your work internally. An external consultant is going to assist with coding a complex transformation in a Google Cloud Dataflow pipeline for your project.

How should you maintain users’ privacy?
A . Grant the consultant the Viewer role on the project.
B . Grant the consultant the Cloud Dataflow Developer role on the project.
C . Create a service account and allow the consultant to log on with it.
D . Create an anonymized sample of the data for the consultant to work with in a different project.

Answer: C