Explanation:

• The geographic range of golden langurs is limited to Assam, India and neighboring Bhutan where they live year-round. They occupy moist evergreen and tropical deciduous forests as well as some riverine areas and savannas in Assam and Bhutan.
• They are listed in Appendix I of CITES, Endangered in the IUCN Red List and in the Schedule I of Wildlife Protection Act, 1972.
• Chakrashila is India’s first wildlife sanctuary with golden langur as the primary species. As a part of MGNREGA, around 27.24 lakh trees will be planted in Assam to sustain the colonies of the Golden Langurs in Bongaigaon district. Hence all statements are correct.