Consider the following statements and select the correct answer using the code given below:1. A biosphere reserve consists of core zone, buffer zone and transition zone.2. Tourists are not allowed in the core zone.3. The transition zone surrounds the buffer zone.4. The buffer zone surrounds the core area zone.

• A. 1, 2 and 3 are correct   
• B. 1, 3 and 4 are correct
• C. 1, 2 and 4 are correct    
• D. 1, 2, 3 and 4 are correct