The Change in Capital Stock Per Worker $\Delta$ K) May Be Expressed as a Function of S =

The change in capital stock per worker ( $\Delta$ k) may be expressed as a function of s = the saving ratio, f(k) = output per worker, k = capital per worker, and $\delta$ = the depreciation rate, by the equation:

A) $\Delta$ k = sf(k) / $\delta$ k.
B) $\Delta$ k = sf(k) × $\delta$ k.
C) $\Delta$ k = sf(k) + $\delta$ k.
D) $\Delta$ k = sf(k) - $\delta$ k.