Which of the following best describes the purpose of a marketing audit?

The purpose of a marketing audit primarily revolves around evaluating the effectiveness of marketing strategies. By systematically assessing all aspects of the marketing environment, an organization can gain insights into how well its marketing efforts are performing. This includes analyzing marketing objectives, strategies, and tactics to identify strengths and weaknesses, as well as opportunities and threats in the marketplace.

Conducting a marketing audit enables businesses to understand what is working and what is not, allowing for adjustments that can enhance overall marketing performance. This comprehensive review can lead to more informed decision-making and strategic planning, ensuring that marketing initiatives align with the organization's goals and market demands.

While the other options touch upon important elements that businesses consider—such as understanding customer preferences, ensuring compliance with regulations, and preparing budgets—these elements are not the primary focus of a marketing audit. The audit is specifically designed to provide a thorough evaluation of the effectiveness of marketing strategies, making option C the most relevant and accurate description of its purpose.