One Can Predict That the Rapid Growth in the East

One can predict that the rapid growth in the East Asian countries will run out of steam,because

A) the growth cannot sustain over the very long term by increasing inputs alone.
B) the primary source of growth in those countries has been rapid increase in labour and capital,not productivity.
C) the long-run growth can only be sustained by increases in total factor productivity.
D) all of the above.