Milo is going over the procedures that her manufacturing plant has for disposing of its wastewater. The plant has two point sources: one discharges into a self-contained large lake and the other is piped into a river near the state border at a point just before the river flows into a neighboring state. Under the Clean Water Act (CWA), Milo must obtain a permit for: A only the point source that discharges into the river. both point sources. only the point source that discharges into the lake. neither point source