Correct Answer: Both assertion and reason are true, and the reason is the correct explanation of the assertion.

Solution : The correct answer is (c) Assertion is true, but the reason is false.

The assertion is true. The marketing concept does indeed aim to achieve long-term customer loyalty and satisfaction. It emphasizes building strong and lasting relationships with customers by understanding and fulfilling their needs and preferences.

The reason is false. The marketing concept does not solely focus on short-term sales targets. While achieving sales is a part of marketing, the primary focus is on long-term customer satisfaction and loyalty. Marketing is about creating sustained customer relationships and meeting customer needs in the long run.

In summary, the assertion is true, but the reason is false. The marketing concept is more concerned with long-term customer relationships and satisfaction rather than just short-term sales targets.