A chemical manufacturer wants to lease a fleet of 25 railroad tank cars with a combined carrying capacity of 574,000 galions. Tank cars with three different capacities are available: 7,000 gallons, 14,000 gallons, and 28,000 gallons. How many of each type of tank car should be leased? Let x, be the number of cars with a 7,000 gallion capacity, x2be the number of cars with a 14,000 gallion capacity, and x, be the number of cars with a 28,000 gallon capacity. Select the correct choice below and fill in the answer boxes within your choice. O A. The unique solution is x, andx(Simplifty your answers) O B. There are multiple possible combinations of how the tank cars should be loased. The combinations are obtained from the equations , (Simplity your answers. Type integers or simplified fractions.) O c. There is no solution