Naphthenic acid is represented by ___________________?

Naphthenic acid is represented by ___________________?

A. CnH2n+2O2
B. CnH2n-2O2 (Correct)
C. CnH2n+2O2 (n ≥ 6)
D. CnH2n+6O2 (n ≤ 6)