【单选题】According to the passage,what is the difference between tidal waves and tides?
A.
Tidal waves are caused by underwater earthquake,but tides are not.
B.
Tidal waves have regular rise and fall,but tides have not.
C.
Tidal waves can be prevented,but tides can not.
D.
Tidal waves can hit the land,but tides can not.