Economic textbooks often use the market for wheat as an example of a perfectly competitive industry. Which of the following characteristics of a perfectly competitive industry is also a characteristic of the market for wheat?

• A - Wheat farmers are price takers.
• B - Farmers use product differentiation to sell their wheat.
• C - Wheat farmers use game theory to compete with their competitors.
• D - The demand curve for wheat is perfectly inelastic.
• E - There are economies of scale in the production of wheat.