Answer:
D. It reminds the audience of the advertiser's identity.
Step-by-step explanation:
Marketing can be defined as the process of developing promotional techniques and sales strategies by a firm, so as to enhance the availability of goods and services to meet the needs of the end users or consumers through advertising and market research.
Advertisement refers to the promotional multimedia messages designed and developed to make the products or services of a company known to its customers and potential customers. It is generally considered to be one-sided because it focuses on painting a brand as the best and devoid of any negative issue.
A logo is simply a graphical symbol, emblem or illustration that serves as a means of identity and trademark of a particular company saddled with the responsibility of manufacturing goods and services for its customers. Logos are usually placed or inscribed in all products, so as to differentiate the brand from it's competitors and to make the customers aware of the identity of the manufacturer (advertiser) during an advertisement.
Hence, the statement which best describes the purpose of a logo is that it reminds the audience of the advertiser's identity.