Identify the correct correlation:
A – The structure of the interior of the earth is decided with the help of seismic waves.
R – The S-waves travel in solid, liquid and gaseous medium while P-waves travel only through solid medium.
(a) Only A is correct.
(b) Only R is correct.
(c) Both A and R are correct and R is the correct explanation of A.
(d) Both A and R are correct but R is not the correct explanation of A.
