Thesis statement: because so many children are now interested in soccer, there is a shortage of volunteers and soccer fields to meet the growing demands of the sport in our town. conclusion paragraph: as mentioned earlier, each volunteer should only be responsible for coaching 10 players in order for players to receive quality coaching. volunteers should also be recruited from adult soccer leagues, to bring more expert coaching skills than parents can provide. furthermore, city officials must focus on both building and improving soccer centers, so all children have safe fields on which to play. which statement best explains the effectiveness of the conclusion paragraph? a. the conclusion is effective because it reinforces the author's credibility and restates the thesis statement of the essay. b. the conclusion is ineffective because it does not restate the main idea of the essay or use a powerful closing sentence. c. the conclusion is effective because it brings up important ideas, including soccer centers and using coaches from adult soccer leagues. d. the conclusion is ineffective because it does not cite facts and statistics in order to make the evidence more credible.