Answer:
A) The same in both countries; the same in both countries
Step-by-step explanation:
First, Solow growth model states that a steady-state level of output per worker will be the same in both countries this is simply because when there is higher growth rate in demography that is population, the steady-state level of capital per worker will be reduced which leads to a lower level of steady-state income. Furthermore, the particular countries have the same production function that is the leonitief model (input equals output), same saving rate, same rate for machine wear and tear, and the same rate for change in demographic composition and all this will give us a Steady-State Level of Capital.
Second, The steady-state growth rate of output per worker will be the same in countries A and country B reason being that the level of capital per worker will not change in the short run, that is, it will remain constant in both country A and B because of the similar factors they share in common.