Which of the following is TRUE according to the passage?

A. Over a third of newly-listed birds are in danger of dying out.

B. The causes leading to the significant decline of giraffes are different from those happening to other species.

C. There is a decline of almost 40% in the number of giraffes in the last 30 years.

D. We can forget about the threat of poaching to giraffes because it no longer exists.