A structural member subjected to compression, has both translation and rotation restrained at one end

Q. A structural member subjected to compression, has both translation and rotation restrained at one end, while only translation is restrained at the other end. As per IS 456 : 2000, the effective length factor recommended for design is

(A) 0.50                      (B) 0.65                      (C) 0.70                      (D) 0.80

Ans: 0.80