Function A is represented by the equation y= 4x+6. Function B is a linear function that goes through the points shown in the table. 6 3 9 12 18 Which statement correctly compares the rates of change of the two functions? O A. The rate of change of function A is 6. The rate of change of function B is 3. OB. The rate of change of function A is 4. The rate of change of function B is 6. C. The rate of change of function A is 4. The rate of change of function B is 3. D. The rate of change of function A is 6. The rate of change of function B is 6.