The definition A mark used in the sale or advertising of services to identify the services of one person
and distinguish them from the services of others refers to a:

A.
Trade name

B.
Trademark

C.
Service mark

D.
Copyright

Explanation:
For answer “a trademark” is a distinctive mark of authenticity, through which the products of
particular manufacturers or the vendible commodities of particular merchants may be distinguished
from those of others. Answer “a trade name” is any designation which is adopted and used by a
person to denominate goods which he markets, or services which he renders or business which he
conducts. A trade name is descriptive of a manufacturer or dealer and applies to business and
goodwill. A trademark is applicable only to vendible commodities. In answer “a copyright “is an
intangible, incorporeal right granted by statute to the author or originator of certain literary or
artistic productions, whereby he is invested, for a statutorily prescribed period, with the sole and
exclusive privilege of multiplying copies of the same and publishing and selling them. (These
definitions were also taken from Blacks Law Dictionary, Abridged Fifth Edition, West Publishing
Company, St. Paul Minnesota , 1983.)