The correct option is C. It shows a positive effect of the solution.
The topic of the presentation is the impact of excessive homework on highschool. The word "excessive" implies that the amount of homework given at highschool has a negative effect on students. The solution would be to have "less homework" and she finds out a positive effect of such a solution. If students are given less homework, they will have time to do other enriching activities and spend time bonding with their loved ones.
The best answer to the statement given above is option b. false. Most people who become addicted to drugs are NOT able to stop on their own and need outside help. Those people who are addicted to drugs have difficulty to abstain from it because these drugs created an addictive pleasure to the body which makes them crave for it. If the urge is not satisfied, drug users often suffer from withdrawal symptoms. This is the time that they need outside help, that's why they need to undergo rehabilitation.
