问题如下：
An analyst has estimated the intrinsic value of a stock would be $30. Calculate the constant growth rate if the most recent dividend was $1 and investors’ required return was 10%.
选项：
A.2.67%.
B.3.08%.
C.6.45%.
解释：
C is correct.
$1(1+g) / (0.1 - g) = $30 and g=6.45%.
the most recent dividend是指最近支付的那次分红吗？所以是不是意味着公式的D_0可以是持股期间任意一个分红节点？
