A trade name refers to
a.
any word, device (design, sound, shape or color), or combination of these used to distinguish a seller's products or services.
b.
the part of a brand name that can be spoken.
c.
the legally registered brand name of a firm's product or service that give it exclusive use, thereby preventing competitors from using it.
d.
the commercial, legal name under which a company does business.
e.
a logotype plus the brand name.
Answer: the commercial, legal name under which a company does business.