Study the following statements regarding food chains and select the correct ones.
(i) Removal of 80% tigers from an area resulted in greatly increased grwoth of vegetation.
(ii) Removal of most of the carnivores resulted in an increased population of deers.
(iii) The lenght of food chains is generally limited to 3-4 trophic levels due to energy loss.
(iv) The lenght of food chains may vary from 2 to 8 trophic levels.

Options

A. a, c
B. a, b
C. b, c
D. c, d

Answer

C