The Trundle Pass Mining Co $$\begin{array} { | l | r |} \hline \text { Labor hours } & 112,000 \\\hline \text { Tons of output produced } & 1,575,000 \\\hline\end{array}$$

The Trundle Pass Mining Co. has the following information for last year:
$$\begin{array} { | l | r |} \hline \text { Labor hours } & 112,000 \\\hline \text { Tons of output produced } & 1,575,000 \\\hline\end{array}$$
The partial productivity for labor is:

A) 1.120.
B) 0.071.
C) 14.063.
D) 112.000.