A. the epicentre within the body of the earth
B. the focus on the surface of the earth
C. the focus within the body of the earth
D. the epicentre on the body of the earth
✅ The correct answer is option C.
The transverse, longitudinal and surface waves in an earthquake originate from the focus within the body of the earth.
The transverse, longitudinal and surface waves in an earthquake originate from the focus within the body of the earth.