Please help me solve the following, I am completely lost. Thank you.

Your boss, Sally Maloney, treasurer of Fred Clark Enterprises (FCE), asked you to help her estimate the intrinsic value of the company's stock. FCE just paid a dividend of $1.00, and the stock now sells for $17.50 per share. Sally asked a number of security analysts what they believe FCE's future dividends will be, based on their analysis of the company. The consensus is that the dividend will be increased by 10% during Years 1 to 3, and it will be increased at a rate of 5% per year in Year 4 and thereafter. Sally asked you to use that information to estimate the required rate of return on the stock, Is, and she provided you with the following template for use in the analysis. Estimated Is = 10.00% (must be changed to force Calculated Price to equal the Actual Market Price) Actual Market Price, $17.50 Po: Rapid growth Normal growth Year 0 2 3 4 Dividend growth rate (insert correct values) 10% 10% 10% 5% 5% Calculated dividends (Do has been paid) $1.00 HV3 = D4/(Is - 84). Find using Estimated Is. +9 Total CFs ? PVs of CFs when discounted at Estimated Is Calculated Price = Po = Sum of PVs = $0.00 A positive number will be here when dividends are estimated. The Calculated Price will equal the Actual Market Price once the correct Is has been found. Sally told you that the growth rates in the template were just put in as a trial, and that you must replace them with the analysts' forecasted rates to get the correct forecasted dividends and then the estimated HV. She also notes that the estimated value for Is, at the top of the template, is also just a guess, and you must replace it with a value that will cause the Calculated Price shown at the bottom to equal the Actual Market Price. She suggests that, after you have put in the correct dividends, you can manually calculate the price, using a series of guesses as to the Estimated Is. The value of Is that causes the calculated price to equal the actual price is the correct one. She notes, though, that this trial-and-error process is quite tedious, and that the correct Is could be found much faster with a simple Excel model, especially if you use Goal Seek. What is the value of Is? Oa. 13.97% Ob. 11.84% Oc. 10.54% Od. 9.83% e. 12.44%