You are writing an expository essay on the pros and cons for a new service hour requirement for graduating high school. which statement would be the best thesis for this piece of writing? a) can you believe that some schools are starting to require a certain number of service hours in order to graduate? b) some students work at food banks to meet the service hour requirement, while others choose to work at the humane society. c) melissa sweet woke up early on saturday morning in order to visit the local food bank and start earning her school's required service hours. d) some people are finding positive effects from requiring service hours to graduate from high school, while others are finding many negative effects.