In the Standard Venn Diagram of a Categorical Syllogism, a Universal

In the standard Venn diagram of a categorical syllogism, a universal proposition is diagrammed by:

A) putting one X on the diagram
B) putting two Xs on the diagram
C) shading out one of the diagram's seven areas
D) shading out two of the diagram's seven areas
E) doing nothing, since universal propositions are not added to Venn diagrams