Thomas is writing a persuasive essay calling for more people to participate in recycling and carpooling. One of his paragraphs starts with the following topic sentence: Carpooling is an effective way to save money as well as help the environment.
What type of detail would be best to support this topic sentence?
A) anecdotes about people who have chosen to carpool
B) discussion of how carpooling can be a fun, if challenging, activity
C) statistics that show how many cities currently encourage carpooling
D) statistics that show lower pollution levels in cities with carpooling