Help asap. Very easy.. Read the entry from Bruno’s blog about animal welfare

I encourage everyone to do what they can to help animals. Animals cannot help themselves, so it is up to us to protect them. A recent nationwide study conducted shows that 30–45 percent of dogs and cats are homeless, and 15–20 percent those homeless animals end up injured or in a animal shelter. It is clear from the numbers that people need to be more concerned about protecting animal welfare.

How does Bruno develop his argument in this part of the article?

He uses a study.
He uses a counterclaim.
He uses a quote.
He uses an interview.