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To optimize ongoing Cloud Storage spend by removing backup files older than 90 days from your backup Cloud Storage bucket, which approach should you take?
A
Schedule a cron script using gsutil ls -lr gs://backups/** to find and remove items older than 90 days**
B
Write a lifecycle management rule in JSON and push it to the bucket with gsutil
C
Write a lifecycle management rule in XML and push it to the bucket with gsutil
D
Schedule a cron script using gsutil ls -l gs://backups/** to find and remove items older than 90 days and schedule it with cron**