Assertion (A): Public Administration is indispensably present in all states, be they capitalist, socialist or developing in nature.
Reason (R): Modern Public Administration has usurped more and more functions within its scope.

A. A and R are true and R is the correct explanation of A

B. 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 true

Answer: Option B