An organization has a large archive of unstructured data, including video and audio files.

The correct answer is D. Cloud Storage. Here's why:

Context of the Question: The organization has a large archive of unstructured data, including video and audio files. These types of files are typically large and require scalable storage that supports unstructured data formats.

Google Cloud Product Relevance:

Cloud Storage is a fully managed, scalable, and highly durable object storage service that supports storing any amount of unstructured data, including images, videos, audio files, backups, and more. It offers various storage classes to optimize costs based on access frequency, making it ideal for large archives.

Cloud Storage provides features like versioning, lifecycle management, and access control, which are essential for managing a large archive of files.

Why Not Other Options:

A. Cloud SQL: Cloud SQL is a managed relational database service that supports structured data with predefined schemas, not suitable for storing unstructured data like videos and audio files.

B. Cloud Spanner: Cloud Spanner is a fully managed, globally distributed relational database. It is also designed for structured data and not suitable for large-scale unstructured data storage.

C. Cloud Bigtable: Cloud Bigtable is a NoSQL database for large-scale analytics but is not optimized for storing unstructured data like multimedia files.

Google Cloud Digital Leader References:

Refer to Google Cloud Storage documentation for details on storing unstructured data and managing large archives.