The following is the text of an advertisement for Extrokleeno Vacuum Cleaners.

Customers across the globe who are tired of breaking their backs cleaning their homes are buying Extrokleeno Vacuum Cleaners. Extrokleeno is a superior brand of clean. Extrokleeno customers are kind to the environment because Extrokleeno uses Greengrub Technologies to sanitize and disinfect.
Duncevac Cleaners, on the other hand, are terrible for the environment. Duncevacs use a ridiculous amount of electricity. Customers are switching from Duncevac Cleaners to Extrokleeno Vacuum Cleaners because they want clean homes and a clean Earth.

This advertisement contains an example of name calling because
A.
it states that Duncevac customers are lazy housecleaners.
B.
it states that Extrokleeno machines use too much electricity.
C.
it claims that Extrokleeno Vacuum Cleaners are superior.
D.
it claims that Duncevac Cleaners harm the environment.