30. Sting, a supporter for humanitarian and environmental causes, established the Rainforest Foundation, an organization, ______.
(A) whose goal is to help save the world’s rainforests (B) who goal is to help save the world’s rainforests
(C) that goal is to help save the world’s rainforests (D) which goal is help save the world’s rainforests
(E) whatever goal is to help save the world’s rainforests