3 Temperature F 40 30 20 10 y 2 Farhart Block A 4 6 8 Time minutes Block B I 10 12 The graph above shows the temperature of two different blocks of metal that are being cooled in a freezer to a temperature of 0 degrees Fahrenheit Both blocks lose heat at a constant rate and Block B started at a lower initial temperature to decrease the time required to cool it Block A took 8 minutes to cool to 0 degrees Fahrenheit and Block B took 12 minutes to cool to 0 degrees Fahrenheit According to the graph what was the difference in degrees Fahrenheit between the initial temperatures of Block A and Block B A 10 B 15 C 20 D 25