The correct option is D utilization of existing knowledge base for reducing the chemical hazards along with developmental activities
Green chemistry is the branch of chemistry that deals with the design and optimization of processes and products in order to lower, or remove altogether, the production and use of toxic substances. Green chemistry is not the same as environmental chemistry. The former focuses on the environmental impact of chemistry and the development of sustainable practices that are environment-friendly (such as a reduction in the consumption of non-renewable resources and strategies to control environmental pollution). The latter focuses on the effects that certain toxic or hazardous chemicals have on the environment.