What type of training is provided for handling hazardous materials?

The correct answer provides comprehensive training that ensures employees are well-prepared to manage hazardous materials safely and effectively. This training covers critical aspects such as identification, safe handling procedures, and appropriate emergency response actions.

By focusing on specific training, United Airlines ensures that employees understand the potential risks associated with hazardous materials and are equipped with the knowledge and skills needed to mitigate these hazards in line with regulatory requirements. This thorough approach not only promotes safety for employees but also protects passengers and complies with legal obligations regarding hazardous materials transport.

In contrast, the other options suggest inadequate training levels, which would fail to adequately prepare staff for the responsibilities involved in handling such materials.