A customer wants to use Oracle Cloud Infrastructure (OCI) for storing application backups which can...

For storing application backups that need to be "stored for months, but retrieved immediately," "Object Storage (standard)" (A) is the suitable OCI service. Standard Object Storage offers durable, scalable storage with immediate access, ideal for backups requiring quick retrieval. "ArchiveStorage" (B) is cheaper but has retrieval delays, unsuitable for immediate access. "File Storage" (C) is for shared file systems, and "Block Volume" (D) is for high-performance attached storage, both less suited for long-term backups. Oracle’s OCI Storage documentation confirms Standard Object Storage for this use case.