Information provided:
Current dividend= $1.15
Current stock price= $10.50
Dividend growth rate= 6%
Flotation cost= 10%
Cost of new equity= D1/ Po*(1 – f) + g
Where:
D1= Next year’s dividend
Po= current stock price
f= flotation cost
g= growth rate
Cost of new common stock= $1.15*(1 + 0.06)/ $10.50*(1 – 0.10) +
0.06
                                                  Â
= $1.2190/ $9.45 + 0.06
            Â
                                      =
0.1290 + 0.06
                                                  Â
= 0.1890*100
                                                  Â
= 18.90%.
Hence, the answer is option a.
In case of any query, kindly comment on the solution.