Which examples correctly apply the basic rules of abbreviation?

The example that demonstrates the correct application of abbreviation is the one referencing the CFO. In this context, "CFO" stands for Chief Financial Officer, which is a legitimate abbreviation commonly used in business communications to refer specifically to the executive responsible for managing the corporation's finances. Proper abbreviations enhance clarity and brevity in professional communication, particularly in environments where the audience is expected to be familiar with the terminology.

Using abbreviations like "CFO" streamlines communication without sacrificing understanding, making it a strong example of how to properly incorporate abbreviations in professional writing. Additionally, the other examples, while they utilize abbreviations, may not align as closely with established conventions or may contain additional elements that could lead to ambiguity or misunderstanding in certain contexts.