Which of the following is a typical "offensive" containment strategy?

A typical "offensive" containment strategy involves proactive measures to directly mitigate the source of a hazardous material spill or release. Plugging and patching are common techniques used in these situations. This method involves sealing leaks or breaches in containers or vessels to prevent the release of hazardous substances. By taking immediate action to stop or reduce the flow of the material, responders can minimize environmental impact and potential harm to people.

In the context of hazardous materials response, effective offensive strategies are critical to controlling and managing incidents where immediate action can prevent further spread or exposure. The act of plugging a leak combined with patching the damaged area shows a hands-on approach to directly intervene in a hazardous situation, thereby exemplifying the essence of offensive containment measures.