Which word in the passage is opposite in meaning to ‘survival’?

Directions: Read the passage given below carefully and answer the question that follows.

Golden langur is a non-human primate being confined to north-western Assam and the adjacent parts of southern and central Bhutan. It is one of the most endangered animals of India. They are thought to be sacred by many Himalayan people and were first discovered by a E. P. Lee, a naturalist. They are found in the dense forest dominated by sal trees. These are medium-sized langurs with deep cream and golden colour in the back. The golden langur has a black face and a long tail which measures approximately fifty centimetres. It is exclusively vegetarian and feeds on leaves, buds, flowers and fruits of several species of trees. It is an endangered animal which is seriously at the risk of becoming extinct with a total population of only one thousand in the year 2000. Their habitat has been in constant danger due to human activity.