Cloth Makers Inc. has p spindles, each of which can produce q metres of cloth on an average in rminutes. If the spindles are made to run with no interruption, then how many hours will it take for 20000 metres of cloth to be produced ?

• A. $\frac{{20000{\text{pq}}}}{{\text{r}}}$$
• B. $\frac{{20000{\text{rq}}}}{{\text{p}}}$$
• C. $\frac{{20000{\text{r}}}}{{{\text{pq}}}}$$
• D. $\frac{{20000{\text{r}}}}{{60{\text{pq}}}}$$