An ad for Hush designer handbags shows the company’s new line of affordable handbags made from genuine alligator leather. After seeing the ad, Erika stated, "You can’t get a genuine alligator handbag for $50! Please!" Erika’s response to the ad is an example of a:
A. negative ad execution thought.
B. negative source derogation.
C. support argument.
D. counterargument.
E. positive source bolster.