Final answer:
Marketers use a strategic planning grid to compare and choose among different market opportunities, considering the firm's core competencies and the nature of competition within various market structures. Option c. is correct.
Step-by-step explanation:
When a firm has multiple market opportunities from which to choose, marketers can use a strategic planning grid to compare and identify the best ones. The strategic planning grid allows firms to evaluate multiple dimensions, such as market attractiveness and competitive advantage, to decide which opportunities align best with their business goals and capabilities. Firms do compete on the basis of price, advertising, and other product differences, which are factors that can be considered in the strategic planning grid within the context of different market structures, such as Perfect Competition, Monopoly, and Monopolistic Competition and Oligopoly.
A focus on core competencies is a common pattern in successful businesses, often leading to more success than attempting to offer a wide range of products.