The correct answer is waterfall.
The correct answer is (B) Waterfall; any rush of water falling from a height over a steep, rocky surface. Also, a section of a large broken waterfall, or a series of falls over steep rocks.
Cascade comes from Italian cascata.
Examples of use:
- The slot machine paid off with a cascade of coins and flashing lights.
- The water swept over several cascades before leaving the narrow canyon.