Which one of the following statements about TOGAF Building Blocks is NOT true?

A.
They are a package of functionality intended to meet the business needs across the organization

B.
They should have stable, published interfaces that allow other building blocks to interoperate with them

C.
They are equivalent to software component objects or web services

D.
They may have multiple implementations but with different, interdependent Building Blocks

E.
They may be assembled from other Building Blocks