Which of the following must be included on a package if required?

Answer: B — The required label and the hazardous materials shipping name

The inclusion of the required label and the hazardous materials shipping name on a package is essential for compliant hazardous materials transportation. This requirement is crucial because it ensures that handlers and first responders are aware of the potential dangers associated with the materials being transported. The label provides visual indications of the hazards, such as flammability, toxicity, or environmental risks, while the shipping name designates the specific type of hazardous material. This information is vital for safe handling and emergency procedures. In contrast, personal identification of the shipper, a list of contents, or a return address, while useful or necessary in certain contexts, do not meet the specific regulatory requirements that govern the transport of hazardous materials. Therefore, the correct answer focuses on the critical components that facilitate safety and regulatory compliance in hazardous materials shipping.