Assertion A: The basic of Laplace correction was that, exchange of heat between the region of compression and rarefaction in air is not possible.

Reason R: Air is a bad conductor of heat and speed of sound in air is large.

 (A) is not correct and (R) is not correct 

Both (A) and (R) are correct and (R) is the  correct explanation of (A)

Both (A) and (R) are correct and (R) is not the correct explanation of (A)

(A) is correct but (R) is not correct