Assertion (A): Sodium hydrogen carbonate is used in baking cakes and pastries
Reason (R): On heating sodium hydrogen carbonate, liberates bubbles of `CO_(2)` leaving holes in cakes and making them light and fluffy.
A. both (A) and (R) are correct and (R) is the correct explanation of (A)
B. both (A) and (R) are correct but (R) is not the correct explanation of (A)
C. (A) is correct but (R) is wrong
D. (A) is wrong but (R) is correct