What Is the Main Reason That Once Sandy Beaches on the West

Multiple Choice

What is the main reason that once sandy beaches on the West Coast are now disappearing?

A) Sea level is rising with global warming, so waves are reaching farther onshore.
B) More frequent El Niño storms are eroding them.
C) More vigorous longshore drift is removing the sand.
D) Dams on rivers no longer supply sand and gravel to feed longshore drift.
E) People have placed riprap and cliff-protection structures, so less sea cliff material is eroding to make sand.