Assertion (A): Reynolds number must be same for the model and prototype immersed in subsonic flows.
Reason (R): Equality of Reynolds number for the model and prototype satisfies the dynamic similarity criteria.
a) Both A and R are individually true and R is the correct explanation of A.
b) Both A and R are individually true but R is not the correct explanation of A
c) A is true but R is false
d) A is false but R is true.