The annual Dividend (D0) = $1.10
D1 = $1.10 * (1+0.21)^1 = $1.33
D2 = $1.10* (1+0.21)^2 = $1.61
D3 = $1.10* (1+0.21)^3 = $1.95
D4 = $1.10 * (1+0.21)^4 = $2.36
D5 = $1.10*(1+0.05) = $2.48
Now the price of the stock at the end of the fourth year (P4) = $2.48/(0.085-0.05)
P4 = $2.48 / (0.035)
P4 = $70.85
Now the Price of the stock (P0) = $1.33/(1+0.085) + $1.61/(1+0.085)^2 +$1.95/(1+0.085)^3 + $2.36/(1+0.085)^4 + $70.86/(1+0.085)^4
Price of the stock (P0) = $1.23 +$1.37 + $1.53 + $1.70 + $51.13
Price of the stock (P0) = $56.86
Therefore the correct option is d, $56.86