If a device has electrical parts that may cause EMC interference, which statement is correct regarding CE marking under MDD 93/42/EEC?

The assertion that CE marking under MDD 93/42/EEC is sufficient is correct because the Medical Device Directive (MDD) provides a framework for the essential requirements that medical devices must meet to ensure their safety and effectiveness, including considerations for electromagnetic compatibility (EMC). While EMC is a crucial factor that must be addressed, adherence to the MDD indicates that a manufacturer has conformed to the directives related to both the safety of the device and its interoperability within its intended environment.

CE marking signifies that a product meets all relevant European health, safety, and environmental protection legislation. Thus, if a device's electrical components are designed to comply with the essential requirements specified in the MDD, including those related to EMC, the CE marking obtained is deemed sufficient.

The other options suggest additional requirements or directives that may not be necessary for the specific context of the question. For instance, while EN ISO 60601 pertains to electrical safety and EMC for medical devices, the completion of CE marking under the MDD already encompasses necessary EMC considerations, making the other options extraneous in this scenario.