Explanation:

3rd option is correct i.e. Wildlife Sanctuaries can be created for a particular species whereas the national park is not primarily focused on a particular species.Third option is correct. Wildlife Sanctuaries are defined as a space which is set aside exclusively for the use of wild animals, who are protected. Wildlife sanctuaries are also referred to as wildlife refuges in some areas. These wildlife sanctuaries are managed by the Government where rangers or authorized employees patrol the area to ensure that no one hunts or otherwise harasses the animals.
These wildlife sanctuaries are home to various endangered species of wild animals. It is a place where these animals are safe from hunting, predation or competition. To protect these wild animals and their habitat, Indian Government has established various wildlife sanctuaries and National Parks across the country. Some of these wildlife sanctuaries are popular and are known for their reserves around the globe.
These wildlife sanctuaries and national parks have become happening tourist destination for wildlife and nature lovers. Each year they attract millions of domestic as well as foreign tourists. The main objective of establishing these wildlife sanctuaries is to safeguard various endangered species of India from extinction in their natural habitat.