Assertion (A): In fluid system model studies, a simple scaling-up of measurements made on the model may not yield results accurately corresponding to the prototype.
Reason (R): Surface tension forces may be relatively much more significant in the model than in the prototype.
(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