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Read the following argument. Identify which sentences are part of the argument chain. (1) A significant percentage of people experiencing homelessness are aged between 0-24 years of age. (2) One contributing factor for youth homelessness is a lack of exit planning after leaving statutory care, juvenile justice or medical facilities. (3) If there was increased funding for exit planning then youth at risk would have more opportunities for support. (4) If there were more opportunities for support then there would be a higher chance of intervention when at-risk youth face homelessness. (5) This would lead to a decrease in youth homelessness. (6) Therefore, funding for better exit planning would lead to a decrease in youth homelessness. Check one option.