A trademark is a device that can take almost any form as long as it is capable of identifying and distinguishing specific products or services. Owens-corning fiberglas corporation's trademark is an example of a poduct that is protected by: a. combination of letters and designs.
b. product shape.
c. picture.
d. logo.
e. color.

E)color

Explanation:

Trademark can be regarded as one of intellectual property, it can be explained as recognizable insignia, symbol as well as phrase and word, which denotes a particular product and it's one that legally differentiates that particular Product from all other products of its kind. A trademark can also be regarded as one that exclusively identifies a product and allow the consumer to know specific company it belongs to and also allows them to know company that have the ownership of the brand.

It should be noted that trademark is a device that can take almost any form as long as it is capable of identifying and distinguishing specific products or services.

For instance Owens-corning fiberglas corporation's trademark is an example of a poduct that is protected by logo.

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