What is the difference between a consumer and a customer?

A consumer is someone who purchases goods or services for personal use, while a customer can refer to an individual or a business entity. This means that while a customer can buy for both personal and business purposes, a consumer only buys for personal use. Additionally, option D is incorrect because a consumer can be both an individual or a corporation. Option C is incorrect because a customer can receive services from a dealer. Therefore, option A is the best answer as it accurately describes the difference between a consumer and a customer.