Which of the following can be threats to the biodiversity of a geographical area?1. Global warming2. Fragmentation of habitat3. Invasion of alien species4. Promotion of vegetarianismSelect the correct answer using the codes given below:

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