Assertion (A): A draft tube is used to reduce the pressure at the runner exit in order in get the increased value of working head
Reason (R): A portion of the exit kinetic energy is recovered which otherwise goes waste to the tail race
(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