Sumatran rhino populations have declined steadily to a point near extinction. Because of its population decline, this unusual forest dwelling rhino is near its :
1. carrying capacity
2. officially listed as threatened
3. critical number
4. officially listed as endangered
Which of the above is/are correct?
(a) 1 and 2 (b) 3 and 4 (c) 1 and 3 (d) 2 and 3