If you use the constant dividend growth model to value a stock $($that is$,$ the equation, Price $=D\frac{1}{r-g},$ which of the following is certain to cause you to increase your estimate of the current value of the stock?

Decreasing the required rate of return for the stock.

Decreasing the estimate of the amount of next year's dividend.

Decreasing the expected dividend growth rate.

An announcement that the CFO has been fired.

none of the above