A. Add the Delegated Developer role to your User record
B. From the User dropdown in the banner, elevate your role to security_admin
C. Manually add the security_admin role to your User record
D. Nothing would need to be done
Explanation:
Reference: https://docs.servicenow.com/bundle/newyork-hr-service-delivery/page/product/human-resources/concept/c_ManageRoles.html