What Are the Implications When Damages "Flow Naturally from the Breach

What are the implications when damages "flow naturally from the breach"?

A) Damages would not include the expected chain of events.
B) Damages include unusual or unexpected consequence of breach.
C) Loss resulting from breach is within the foreseeable boundaries of what the parties would have expected.
D) This allows one to use the natural person reasonability test.
E) Must communicate the significance of performance at time of forming the contract.