In Areas That Have Become Urbanized,the Percolation of Rainwaters Tends

Multiple Choice

In areas that have become urbanized,the percolation of rainwaters tends to decrease and the speed at which rainwaters flow into streams and rivers tends to increase.Which of the following would be good ways to counteract this effect?

A) Dig drainage ditches to the streams and rivers, for rainwaters to flow through quickly.
B) Dig out shallow areas for rainwater runoff to collect into, to allow slow percolation into soils.
C) Increase the carrying capacity of storm water sewer systems.
D) Both A and C