Which of the following statements includes a credible source for essay writing? Select one:

Mr. Rudy Gonzalez, an 8th grade math teacher, stated that student who drink caffeinated coffee drinks in the morning appear overly agitated during school hours.

In an article from Centers for Disease Control and Prevention, Mary L. Gavin, MD, states that caffeinated coffee drinks can cause problems with bone density in growing teens.

According to the website for the National Organization of Coffee Retailers, there is little evidence to prove that caffeinated coffee drinks have any negative affects on teenagers.

Nia Johnson states in her blog, Nia’s Life, that she consumed a 16 oz. coffee drink every day for one month and experienced daily headaches during that time.