Concept:
The ISO 14000 family of standards provides practical tools for companies and organizations of all kinds looking to manage their environmental responsibilities.
• ISO 14000: The general family of standards.
• ISO 14001: The specific requirements for an Environmental Management System (EMS).
• Certification: Organizations are certified against the 14001 standard specifically.
Step 1: Identifying the core standard for EMS.
The ISO 14000 series includes several standards related to environmental management.
However, ISO 14001 is the most important among them.
Step 2: Understanding the function of ISO 14001.
It maps out a framework that a company or organization can follow.
This framework helps set up an effective environmental management system.
Step 3: Conclusion.
While other 14000 standards provide guidelines, 14001 sets the requirements.
Final Answer: (A)