Read this paragraph from an informational text about earthquakes and tsunamis. Earthquakes can cause another type of natural disaster known as a tsunami. A tsunami is a series of enormous sea waves often caused by earthquakes that occur on the seafloor. The energy produced by an earthquake creates the force behind a tsunami. Tsunami waves can travel thousands of miles across the ocean.

Which sentence tells what this paragraph is mostly about?

A.
“Earthquakes can cause another type of natural disaster known as a tsunami.”
B.
“A tsunami is a series of enormous sea waves often caused by earthquakes that occur on the seafloor.”
C.
“The energy produced by an earthquake creates the force behind a tsunami.”
D.
“Tsunami waves can travel thousands of miles across the ocean.”