The correct answer is D. All of the above.
A trademark is a sign that distinguishes the goods or services of one trader from those of other traders. It can be a word, phrase, logo, symbol, or design, or a combination of these. A trademark must be capable of distinguishing the goods or services of one trader from those of other traders. It must be distinctive, and not descriptive of the goods or services it is used to identify. A trademark must also be capable of being represented graphically. This means that it must be able to be reproduced in a way that allows it to be identified visually, for example, by being drawn, photographed, or electronically stored.
A trademark can include shapes of goods or combinations of colours. For example, the shape of a Coca-Cola bottle is a registered trademark, as is the combination of red and white colours used on Coca-Cola products.
Trademarks are important because they help consumers to identify the source of goods and services. They also help businesses to protect their reputation and goodwill.