I understand how to find external equity with the equation: re= D1/(P0(1-F))+g. How do I find/ what is g in this problem?

7. Messman Manufacturing will issue common stock to the public for $30. The expected dividend one year from today is $3.00 per share, and the expected earnings is $6.00 per share. ROE is expected to be 12%. If the flotation cost is 10% of the issue's gross proceeds, what is the cost of external equity, re? a. 6.00% b. 16.00% C. 17.11% d. 22.00% e. 23.11%