<prompt> Best vehicle for oxygen isHb solutionWhole bloodPlasmaDissolved  <response>: 97 of oxygen in blood combines with Hb and presence of Hb increases the oxygen carrying capacity of blood 70 fold.3 of blood os transpoed in dissolved form.ie 100 ml of pure blood contains 0.3ml of oxygen dissolved in plasma.Ref: Textbook of medical physiology by N Geetha, 2nd edition, page no. 241,242 