Consider the Solow Growth Model, which is a cornerstone in understanding long-term economic growth and capital accumulation. Which of the following statements are true regarding the dynamics and implications of the Solow Model? 

A) In the Solow Model, a permanent increase in the savings rate leads to a higher steady-state level of capital per worker, but does not affect the long-term growth rate of the economy.

B) Technological progress is not a central factor in the Solow Model, given that the model primarily focuses on capital accumulation as the sole driver of economic growth.

C) The Solow Model predicts that countries with higher population growth rates will have lower levels of capital per worker in the steady state, assuming the same savings rate and technology level.

D) According to the Solow Model, long-term economic growth can be sustained indefinitely through continuous increases in capital accumulation without requiring any improvements in technology.