The Snowflake architecture consists of three layers: Cloud Services, Query Processing (Virtual Warehouses), and Database Storage. The Cloud Services layer handles centralized management functions including authentication and access control (B) and metadata management (C). These are explicitly listed in Snowflake's documentation as services managed in the cloud services layer. Local disk caching (A) is handled at the virtual warehouse level, query processing (D) is the primary function of virtual warehouses, and database storage (E) is handled by the storage layer. The community discussion shows strong consensus for BC with multiple upvoted comments referencing official Snowflake documentation that confirms these responsibilities.