_ Which of the following is/are matched correctly?1. Earthquake's origin - seismic focus2. Epicentre - point on earth's surface directly above seismic focus3. 5 waves - similar to sound waves4. Richter scale - severity of earthquake$?

_ Which of the following is/are matched correctly?1. Earthquake's orig

1.	_ Which of the following is/are matched correctly?1. Earthquake's origin - seismic focus2. Epicentre - point on earth's surface directly above seismic focus3. 5 waves - similar to sound waves4. Richter scale - severity of earthquake$?
A.	1, 2, 3
B.	1, 2, 3 and 4
C.	2 and 4
D.	3 and 4
Answer» C. 2 and 4