What is the primary purpose of the "3Rs" concept from Russell and Burch?

The primary purpose of the "3Rs" concept, which stands for Replacement, Reduction, and Refinement, is fundamentally aimed at decreasing the use of animals in research and minimizing the pain and distress that may be inflicted on them during experiments. This ethical framework encourages researchers to consider alternatives to animal testing (Replacement), to use fewer animals whenever possible (Reduction), and to enhance animal welfare by improving experimental techniques and procedures (Refinement).

By focusing on these principles, the "3Rs" aim to promote more humane research practices while still ensuring that scientific investigations can be conducted effectively. This is crucial not only for upholding ethical standards in research but also for aligning scientific inquiry with societal values concerning animal welfare. The other options misinterpret the intent of the "3Rs" by either advocating for increased animal usage or focusing primarily on economic factors rather than the ethical implications inherent in the treatment of research animals.