Olympic swimmers have been shown to have between three and ten percent body fat. If we could all decrease our body fat to that level, we would all swim better. Which one of the following most accurately characterizes the method of reasoning used in the above statement? Select one: a. It bases a conclusion on evidence about the argument's source. b. It illustrates the absurdity of the argument by reaching an illogical conciusion. c. It uses flawed evidence to support its conclusion. d. It assumes what it seeks to establish. e. It assumes a causal relationship is responsible for a correlation