The correct answer is option B, A focus on chemical cycling
The five major principles of sustainability are as follows:
a) Biodiversity
b) Chemical Cycling
c) Reliance on solar energy
d) nutrient recycling,
e) Population control to reduce damage to the environment
The major goal of these principles is to maintain a cohesive environment to produce a well-functioning alignment between societies, economy and individual and also save the resources for coming generations after fulfilling the need of present generation by planning an effective resource utilization map thereby disturbing the natural cycles "the least".