Sal's Pizza has a dividend payout ratio of 10 percent. The firm does not want to issue additional equity shares but does want to maintain its current debt-equity ratio and its current dividend policy. The firm is profitable. Which one of the following defines the maximum rate at which this firm can grow?
A. internal growth rate (1 - 0.10)
B. sustainable growth rate (1 - 0.10)
C. internal growth rate
D. sustainable growth rate
E. zero percent