The correct answer is: a) Rhinoceros.
Rhinoceros are poached for their horns, which are used in traditional Chinese medicine. The demand for rhino horn is high, and the poaching of rhinos is a major threat to their survival. In Assam, there are an estimated 2,400 rhinos, which is about 70% of the world’s population. Poaching is a major threat to the rhino population in Assam, and it is estimated that about 100 rhinos are poached each year.
The other options are incorrect because they are not as threatened by poaching as rhinos. Leopards are also poached for their skins and body parts, but they are not as heavily targeted as rhinos. Wild boars are not poached for their body parts, but they are hunted for food and sport. Porcupines are not poached at all.
Poaching is a serious problem that threatens the survival of many species of animals. It is important to raise awareness of the issue and to support organizations that are working to protect endangered animals.