45 | Q+A | CDD | diagnostic| automotive | autosar | embedded | Q&A

**Explanation**: When it comes to Complex Device Drivers (CDD) and diagnostic services in AUTOSAR, the CDD interacts with the Diagnostic Communication Manager (DCM). The DCM module processes diagnostic request messages received from the PDU Router (PduR). If the request is supported, the DCM communicates with other BSW modules or Software Components (SWCs) via the RTE to obtain necessary information or execute commands related to diagnostics1. So, the correct answer is B. Diagnostic Communication Manager. 🚗🔧🔄

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