How much bigger is the volume rate of flow at the end of the tube than at the entrance in cubic meters?

• A. \[9\,\times \,{{10}^{-5}}\]
• B. \[\frac{1}{3}\times \,{{10}^{-5}}\]
• C. \[\frac{4}{9}\times \,{{10}^{-5}}\]
• D. None of these