What type of paragraph is the following?

Which of these sentences has an error in subject-verb agreement? a. official procedures calls for students who are tardy three times to serve detention. b. as a result of her efforts, a team of volunteers signs up every month to clean the city's parks. c. the committee of parents protested loudly at the school board meeting. d. each of the neighbors brings a dish to share at the pot-luck gathering.

What is the central idea in this advice from branch rickey to jackie robinson?  

Satire can best be defined as the literary form or technique in which and are used to criticize one's vices.