Value of the growth option: $3374.47Value of the entire project: $5,227.74First, we need to calculate the value of the growth option. Here are the steps:Step 1: Calculate the price of the underlying asset.For a two-year investment, the initial outlay is $20,000. In year 1, the cash flow will be either $5,000 or $25,000. In year 2, if the option is exercised, the cash flow will be either $5,000 or $25,000. The present value of these cash flows can be calculated as follows:Pv1Good demand = $25,000 / (1+10%)^1 = $22,727.27Pv1Bad demand = $5,000 / (1+10%)^1 = $4,545.45Pv2Good demand = $25,000 / (1+10%)^2 = $20,661.16Pv2Bad demand = $5,000 / (1+10%)^2 = $4,132.23Step 2: Calculate the variance of the project’s rate of return.The variance is given as 0.3397.Step 3: Calculate d1 and d2.d1 = [ln($22,727.27/$20,000) + (0.06 + 0.3397/2) x 1]/[0.5826] = 1.56d2 = d1 - 0.5826 = 0.98Step 4: Calculate the value of the growth option.The value of the growth option can be calculated using the Black-Scholes formula as follows:Value of the growth option = $20,000 x [0.7533 x N(1.56) - 0.5715 x N(0.98)] = $3374.47Next, we need to calculate the value of the entire project. Here are the steps:Step 1: Calculate the present value of the annual cash flows.The present value of the annual cash flows can be calculated as follows:PV of annual cash flows = $70 x 5,600 x [(1 - 1/(1 + 18%)^10) / 0.18] = $356,451.22Step 2: Calculate the present value of the terminal value.The present value of the terminal value can be calculated as follows:PV of terminal value = $1,270,000 / (1 + 18%)^1 = $1,075,423.73Step 3: Calculate the NPV.The NPV can be calculated as follows:NPV = - $1,550,000 + $356,451.22 + $1,075,423.73 + $3374.47 = $5,227.74Therefore, the NPV of the project is $5,227.74.