A solid bar has a square cross-section. Its length is recorded as $50.0 \pm 0.2\,\text{cm}$ and its width is recorded as $2.00 \pm 0.01\,\text{cm}$. These measurements are then used to find the volume of the bar. Calculate the percentage uncertainty in the volume found.
- A$\pm 0.21\%$
- B$\pm 0.22\%$
- C$\pm 0.90\%$
- D$\pm 1.4\%$