C) as an example of an activity that can teach science and be fun at the same time
This is the best answer because Mr. Osorio needs to connect the idea of taking field trips, like one to the roller coaster, to getting students interested in science. A counter-argument will not be effective in connecting the passage with his argument. It will only convince others his idea is not a good one. It is important to address and squash a counter-argument when doing any type of persuasive speech or writing. However, the counter-argument is not the right choice at this point in Mr. Osorio's presentation. Option D is not correct either because it is too narrow. Visiting a roller coaster can teach students about potential energy and kinetic energy. Mr. Osorio doesn't want to only teach these science topics. Choosing option D would not help his overall argument that students should go on at least four field trips in a year. The science curriculum is about more than just energy.