The correct option is D Giant panda
The 'World Wide Fund for Nature' (WWF) is an international non-governmental organization founded on April 29, 1961, and is working on issues regarding the conservation, research and restoration of the environment. It was formerly named the 'World Wildlife Fund', which remains its official name in Canada and the united states. WWF's giant panda logo originated from a panda named 'Chi Chi' that had been transferred from Beijing zoo to London zoo in 1958, three years before WWF became established.