Swimming has developed from a primal mode of movement to an advanced hobby and competitive sport. exercising nearly every muscle group, swimming is a rigorous sport and requires intense training. in competitions swimmers typically contend for the fastest time to complete a certain distance by performing a specific swimming stroke. also, swimmers work to build endurance and an ability to swim over long distances. because swimming has developed into a highly intricate competitive sport, where one wrong technique can disqualify a participant, it is interesting to ponder how the sport will evolve for people in the future, either advancing into a progressive purpose or regressing to a primal mode of movement. the structure of this passage could be best described in what way? a. an activity narrowed to a specific purpose and expanded to consider future implications. b. an activity narrowed to a specific purpose and expanded to consider future deviations. c. a hypothesis tested against certain conditions, developed into a larger thesis. d. an activity and its purposes are explained. e. a supposition regarding the prospect of an activity, analyzed for viability