Catherine's Consulting Has a Net Income of $1,400 and a Total

Catherine's Consulting has a net income of $1,400 and a total equity of $12,000. The debt-equity ratio is 1.0 and the plowback is 30%. What is the internal growth rate for Catherine's consulting?

A) 1.6%
B) 1.78%
C) 1.98%
D) 2.21%
E) None of these.