Clothing maker, Single$-$Strap, Inc. $($SS$),$ designs an exclusive style of women's one$-$shoulder strap couture dresses which they market under the slogan "Strapulous!"

Five years ago, SS registered this slogan with the U$.$S$.$ Patent and Trademark Office.

Last year Trend Now, a discount clothing manufacturer, began using the slogan "Strapulous" on its labels associated with one$-$shoulder strap dresses that it makes.

SS filed a lawsuit against Trend Now, claiming trademark infringement for the use of the slogan.

What is the best argument that Trend Now can make that could bolster its argument that the slogan, "Strapulous!" should not be protected under the Lanham Act?

The slogan is arbitrary

The slogan has a secondary meaning.

The slogan is descriptive

The slogan is confusing to consumers.