Final answer:
Advertising influences attitudes, beliefs, and consumers' purchases. It differentiates one firm's products from another. Successful advertising campaigns can increase sales and market share, but cannot change deeply rooted values and attitudes.
Step-by-step explanation:
Advertising influences attitudes, beliefs, and ultimately, consumers' purchases. It is all about explaining to people or making them believe that one firm's products are differentiated from another firm's products. Successful advertising campaigns can result in increased sales and market share for a company. However, it is not capable of changing consumers' deeply rooted values and attitudes.
correct option c. It influences attitudes, beliefs, and ultimately, consumers' purchases.