Final answer:
The marketing plan in a business firm is primarily concerned with sales and product distribution, focusing on strategies to reach consumers and manage the supply chain effectively.
Step-by-step explanation:
The marketing plan of a business firm would most likely deal with sales and product distribution. This aspect of the business plan focuses on how products are sold and delivered to consumers. It involves strategies for reaching the target market, pricing, advertising, and managing the supply chain to ensure that products are available where and when they are needed. It is distinct from production methods, capital investments, and workforce management, which are typically associated with operations and human resources planning.