Which graph represents the variation of surface tension with temperature over small temperature ranges for water?

Which one of the following represents correctly the variations of surface tension with temperature theta ?

Which one of the following represents correctly the variations of surface tension with temprature theta ?

The graph between surface tension and temperature T is

The graph between surface tension and temperature T is

The surface tension of water at critical temperature is …….

Which one of the following given graphs represents the variation of rate constant (k) with temperature (t) for an endothermic reaction ?

Which one of the following given graphs represents the variation of rate constant (k) with temperature (f) for an endothermic reaction ?