What Does the Gargenta Mean in His Design Philosophy When

What does the Gargenta mean in his Design Philosophy when he says that the project will, "Always be whole and complete"?

A) he means that when we finish the entire project we will have a working application, even though there will be points along the way when we will stop and the application will not run.
B) he means that the program must always be able to compile.
C) he means that we will work on the program by adding self contained chunks to it so that at every stopping point the application runs as though it were a whole and complete application. each additional chunk simply adds a new functionality to the application.
D) none of the above