A Is correct because creating a cluster with Stackdriver Logging option will enable all the container logs to be stored in Stackdriver Logging.
B Is not correct because creating a cluster with Stackdriver Monitoring option will enable monitoring metrics to be gathered, but it has nothing to do with logging.
C is not correct, because even if you can develop a Kubernetes addon that will send logs to BigQuery, this is not a Google-recommended practice.
D is incorrect because this is not a Google recommended practice.
E Is correct because Stackdriver Logging support exporting logs to BigQuery by creating sinks (see links below).
https://cloud.google.com/kubernetes-engine/docs/how-to/logging
https://cloud.google.com/logging/docs/export/configure_export_v2
https://kubernetes.io/docs/reference/labels-annotations-taints/

Project Billing Manager is required to manage the GCP project billing settings. We assume you can create a new billing account because you are an organization billing admin or because you are not part of an organization.

https://cloud.google.com/sdk/gcloud/reference/services/list#--available
--available
Return the services available to the project to enable. This list will include any services that the project has already enabled.
To list the services the current project has enabled for consumption, run:
gcloud services list --enabled
To list the services the current project can enable for consumption, run:
gcloud services list --available

To use a service account outside of Google Cloud, such as on other platforms or on-premises, you must first establish the identity of the service account. Public/private key pairs provide a secure way of accomplishing this goal.
https://cloud.google.com/iam/docs/creating-managing-service-account-keys

Coldline is a new Cloud Storage class designed for long-term archival and disaster recovery.
https://cloud.google.com/blog/products/gcp/introducing-coldline-and-a-unified-platform-for-data- storage