Consider the following statements :
Assertion (A) : The velocity of sound in air increases due to the presence of moisture in it
Reason (R ) : The presence of moisture in air lowers the density of air of these statements

Options

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

Answer

A