A. It is a typical make-to-order supply chain, with every project creating a new product or prototype. There is little repetition, again with minor exceptions. The process can be very similar, however, for projects of a particular kind.

B. It is, apart from rare exceptions, a temporary supply chain producing one-of construction projects through repeated reconfiguration of project organizations. As a result, the construction supply chain is typified by instability, fragmentation, and especially by the separation between the design and the construction of the built object.

C. It is a converging supply chain directing all materials to the construction site where the object is assembled from incoming materials. The construction factory is set up around the single product, in contrast to manufacturing systems where multiple products pass through the factory, and are distributed to many customers.

D. All of these