Final answer:
A CSR should use ethical guidelines, data and information, and seek input from stakeholders to make difficult decisions.
Step-by-step explanation:
A CSR (Corporate Social Responsibility) should use various resources to make difficult decisions. One important resource is ethical guidelines, which help in assessing the social, economic, and environmental impact of decisions.
Another resource is data and information, which can provide insights into the consequences of different choices. Additionally, seeking input from stakeholders such as employees, customers, and local communities can help in making well-rounded decisions.