Correct Answers: B and C
Option A is incorrect. Developer portal (Apigee integrated portal) helps API teams and the development teams in using the turnkey self-service platform.
Option B is correct. Facilitating ownership hierarchy is one of the main purposes of Google Cloud resource hierarchy.
Option C is correct. Providing inheritance for organization policies and access control is one of the main purposes of Google Cloud resource hierarchy.
Option D is incorrect. Access Context Manager facilitates administrators to access controls based on attributes for resources in Google Cloud.
References:
https://cloud.google.com/resource-manager/docs/cloud-platform-resource-hierarchy
https://docs.apigee.com/api-platform/publish/developer-portal#integrated-portal
https://cloud.google.com/access-context-manager/docs