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

In a steady-state economy with a saving rate s, population growth n, and labor-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) .