Assume Costs and Assets Increase at the Same Rate as Sales

Assume costs and assets increase at the same rate as sales. Also assume 40% of net income is paid out in dividends. What is the maximum growth rate achievable assuming no external debt or equity is available?

A) 11.2%
B) 25.4%
C) 35.8%
D) 51.6%
E) 111.8%