The figure given below is a diagrammatic representation of response of organisms to abiotic factors. What do A, B and C represent respectively?
A. (A) conformer (B) regulator (C ) partial regulator
B. (A) regulator (B) partial regulator (C ) conformer
C. (A) partial regulator (B) regulator (C ) conformer
D. regulator (B) conformer (C ) partial regulator