Assertion (A): In fluid, the rate of deformation is far more important than the total deformation itself.
Reason(R): A fluid continues to deform so long as the external forces are applied
a. Both A and R are true and R is the correct explanation of A
b. Both A and R are 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 false