If the same column be fixed at both the ends (in place of hinged ends)

Question

A long column hinged at both the ends has certain critical Euler’s buckling load carrying capacity. If the same column be fixed at both the ends (in place of hinged ends), the load-carrying then increases to                    

         (a) 4 times                       (b) 3 times

         (c) 2 times                       (d) Nil