Consider the growth model with function Y=AK. The depreciation rate equals 10%, the population growth rate equals 2%, and parameter A equals 2/3. The savings rate is constant and equal to s:

Choose an option (Justify your answer):

(a) If s < 18%, the product per capita grows at a constant and positive rate.

(b) If s > 18%, the product per capita tends to zero in the long run.

(c) If s > 18%, the product per capita grows at increasing rates.

(d) If s = 18%, then any k0 is a steady state.