According to the ground water movie, around 50 % of the river(stream) water comes from the ground water. In the movies example of two streams on B in North Dakota the stream flow is 90% made of run off and only 10% ground water. Whereas in case of C., an stream in Michigan, has 90 % groundwater and 10 % run off water contribution. What kind of rocks are present in these two aquifers?

Group of answer choices

B. is mostly pebbles and gravel, which are coarse grained rocks with high permeability and allow the movement of water.; and C is mostly dolostone and limestone, which are fine grained rocks and do not allow the movement of water;

B is mostly oil rich shale and C is mostly silty limestone.

B is mostly limestone which are fine grained rocks and do not allow the movement of water;C. is mostly shale and gypsum, which are coarse grained rocks with high permeability and allow the movement of water.

B is mostly silt and clay, which are fine grained rocks and do not allow the movement of water; and C. is mostly sand and gravel, which are coarse grained rocks with high permeability and allow the movement of water.