The fastest and most supportable time-to-value option is the SCCM Service Graph Connector . Service Graph Connectors are purpose-built integrations for bringing third-party source data into the CMDB using ServiceNow-supported mappings, Identification and Reconciliation Engine processing, source tracking, and standardized class alignment. For SCCM specifically, the SCCM Service Graph Connector avoids the technical debt of building custom JDBC imports, transform maps, and scripts. Import sets and transform maps can work, but they require more implementation effort and create higher risk if IRE is not correctly invoked.
IntegrationHub ETL with RTE is a stronger pattern than raw imports, but for SCCM the dedicated Service Graph Connector is still the fastest and most governed solution. SCCM Usage Metering Spoke is not the CMDB ingestion tool for Windows computer CI data. Therefore, D is correct.