About the descriptions of biological module, which one is wrong?

A、Biological module is a set of intracellular localized biological devices.;
B、Biological module performs specific complex functions.;
C、Like part, device, and system, the biological module is a hierarchy inside cells.;
D、Biological module is a concept proposed to reduce the complexity of synthetic biological systems. It emphasizes "functional independence".;
E、Biological modules in cells are often pathways with specific functions, such as metabolic pathway or signal transduction pathway.