(A) : Melting of solid causes no change in internal energy.
( R) : Latent heat is the heat required to melt a certain mass of solid.

Options

A. Both (A) and (R) are true and (R) is the correct explanation of (A)
B. Both (A) and (R) are true and (R) is not the correct explanation of (A)
C. (A) is true but (R) is false
D. Both (A) and (R) are false

Answer

D