How to?

24.4 A man of mass 85 kg floats inside a space station with both arms outstretched at his sides with his hands 1.8 m apart. He has a 15kg object in his right hand, which he then transfers to his left hand. How far does his body move with respect to the space station? (A) 0.22 m (B) 0.27 m (C) 0.33 m (D) 0.19 m (E) 0.13 m