Which of these is not a source cited in this passage?

A. An article from the website NationalGeographic.com: "How to
Farm a Better Fish"

B. The article: "Basic Questions about Aquaculture," which was
published by the National Oceanic and Atmospheric Administration

C. An Encyclopedia Britannica article: "The Pros and Cons of Fish
Farming."

D. Global aquaculture statistics published by the Food and Agriculture
Organization of the United Nations Fisheries and Aquaculture
Department in 2013