Consider the following diagram, which represents a migration from a Baseline to a Target Architecture:

Which of the following answers best interprets the unlabeled symbol in the middle of the diagram?

A.
It represents a relatively stable intermediate state during the migration from the Baseline to the
Target Architectures

B.
It represents a project that progresses the architecture from Baseline to Target

C.
It represents the deliverables necessary to transform the architecture from Baseline to Target

D.
It represents a conceptual point of transition between the two architectures, but one that is
unlikely to exist in reality for more than an instant