Consider the following statements concerning food chains : (A) Remoal of 80% tigers from an area would result in increased growth of vegetation. (B) Removal of carnivores would result in an increased population of deer. (C) The length of food chain is generally limited to 3-4 trophic levels due to energy loss. (D) The length of food chains may vary between 2 to 8 trophic levels.

• A. (A) , (B)
• B. (B) , (C)
• C. (C) , (D)
• D. (A) , (D)