The correct answer is option 'C', which states that there are 50 tiger reserves in India.

Explanation:

**Tiger Reserves in India:**
India is home to a significant population of tigers, and to protect these majestic creatures and their habitats, tiger reserves have been established across the country. Tiger reserves are designated areas where conservation efforts are focused on safeguarding the tiger population and their ecosystems.

**Number of Tiger Reserves in India:**
As of now, India has a total of 50 tiger reserves, spread across various states. These reserves have been established under the Project Tiger initiative, which was launched in 1973 by the Government of India. The objective of this project is to ensure the conservation and sustainable management of the tiger population in the country.

**Purpose of Tiger Reserves:**
Tiger reserves play a crucial role in the conservation of tigers and their habitats. These reserves provide protected areas where tigers can thrive and breed without facing significant threats from poaching, habitat destruction, or human-wildlife conflict. By designating specific areas as tiger reserves, the government aims to create a safe and conducive environment for the survival and growth of the tiger population.

**Project Tiger:**
Project Tiger is a comprehensive wildlife conservation program implemented by the Government of India. It focuses on the protection and management of tiger reserves, research and monitoring, habitat improvement, wildlife law enforcement, and community participation. The project has been instrumental in reviving the tiger population in India, which was once on the brink of extinction.

**Importance of Tiger Reserves:**
Tiger reserves not only safeguard the tiger population but also contribute to the overall biodiversity conservation of the respective regions. These reserves protect the ecosystems that support tigers, which in turn benefit numerous other species of flora and fauna. Additionally, tiger reserves attract tourists, generating revenue and supporting local economies through ecotourism.

In conclusion, India has a total of 50 tiger reserves, which are crucial for the conservation and protection of the tiger population and their habitats. These reserves serve as safe havens for tigers and contribute to the overall biodiversity conservation efforts in the country.

Starting from nine (9) reserves in 1973-2016 the number is grown up to fifty (50). A total area of 71027.10 km2 is covered by these project tiger areas.