The JencoMart Security Team Requires That All Google Cloud Platform

The JencoMart security team requires that all Google Cloud Platform infrastructure is deployed using a least privilege model with separation of duties for administration between production and development resources. What Google domain and project structure should you recommend?

A) Create two G Suite accounts to manage users: one for development/test/staging and one for production. Each account should contain one project for every application
B) Create two G Suite accounts to manage users: one with a single project for all development applications and one with a single project for all production applications
C) Create a single G Suite account to manage users with each stage of each application in its own project
D) Create a single G Suite account to manage users with one project for the development/test/staging environment and one project for the production environment