Assertion (A): Fire tube boilers do not operate at high pressures while water tube boilers operate at high pressures.
Reason (R): Due to high temperature of flue gases, fire tubes may fail due to creep.
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