They are filming a country food stamps campaign.
Explanation:
(a letter Sodapop gave Dallas to pass onto Ponyboy while he was staying at the church, because Soda knew Dallas knew where the boys were)
B: Service is being an active helper in the community and taking action that can be of benefit.
For the introduction introduced the play, bring up the meaning of betrayal and mention that Julius was betrayed. But don't explain it all there, you can go more into detail about that stuff in the following paragraphs. For the concluding paragraph you can briefly summarize what you had written, but don't bring up any new information at all.