In a Steady-State Economy with a Saving Rate S,population Growth $\delta$

In a steady-state economy with a saving rate s,population growth n,and labour-augmenting technological progress g,the formula for the steady-state ratio of capital per effective worker (k*) ,in terms of output per effective worker (f(k*) ) ,is (denoting the depreciation rate by $\delta$
) :

A) sf(k) /( $\delta$ + n + g) .
B) s/((f(k) ) ( $\delta$ + n + g) ) .
C) f(k) /((s) ( $\delta$ + n + g) ) .
D) (s - f(k) ) /( $\delta$ + n + g) .