Read the following scenarios. then, select the scenario that is least likely to produce an earthquake.

a
a volcano suddenly erupts. the magma exerts pressure on the rock surrounding the volcano and causes a break.

b
seismic waves are moving in various directions. these waves cause the area around the waves to move up and down and back and forth.

c
a large piece of rock breaks off a mountain. it rolls down the side of the mountain in a destructive path.

d
a piece of rock along a fault line abruptly shifts. this causes the ground to move suddenly.