Select the letter of the correct answer.
What is this article mainly about?
A.A disagreement over a plan to ban the sale, distribution, and possession of shark fins
B.A poll showing that shark fin soup is served at weddings, banquets, and other events
C.A chef who became an activist after viewing a video of inhumane treatment of sharks
D.A group of environmentalists who want to make shark finning illegal in U.S. waters