Solar Designs is considering an investment in an expanded product line. Two possible types of expansion are being considered. After investigating the possible outcomes, the company made the estimates shown in the following table. <image 1> Determine the range of the rates of return for each of the two projects.
['Expansion A: 20% to 24%; Expansion B: 10% to 30%', 'Expansion A: 16% to 24%; Expansion B: 10% to 30%', 'Expansion A: 16% to 24%; Expansion B: 20% to 30%', 'Expansion A: 20% to 24%; Expansion B: 20% to 30%']