I need help with this. Thank you!

a. Explain the difference between short run and long run cost curves. b. In the graph below, identify if this firm is achieving constant returns to scale, economies of scale or diseconomies of scale. LRAC Costs 01 Quantity of output c. Explain in economic terms what it means for a firm to be the right size for a market. d. Identify two factors that would decrease long run and short run costs