Here's why:
* Loaded words carry strong emotional connotations and can evoke strong reactions in people.
* Argued implies conflict, disagreement, and potentially hostility. It suggests a heated exchange of words, often with negative implications.
The other words are more neutral:
* Sharply suggests intensity but doesn't necessarily imply negativity.
* Refused indicates a denial, which could be polite or firm, but doesn't inherently evoke strong emotions.
* Different is a simple statement of distinction, without any inherent emotional charge.
Therefore, argued is the most loaded word because it carries the strongest emotional weight and suggests a negative or confrontational situation.