In the Case of Band-Aid Adhesive Bandages, the Brand Name

In the case of Band-Aid adhesive bandages, the brand name has

A) successfully employed private label branding.
B) distinctive brand substitutability.
C) grown through private label branding.
D) become synonymous with the product itself.
E) avoided brand extensions.
Brand names that become synonymous with the product must protect against the use of the brand name in a generic fashion, or they may lose their trademark on the name.