Positive response is a communication with the excavator prior to excavation to ensure that ________.

The correct answer identifies the fundamental purpose of a positive response communication prior to excavation activities. This communication process is essential to ensure safety and prevent damage during excavation. Specifically, it verifies that underground pipelines have been accurately located and marked.

Before any excavation begins, it is crucial to know the exact positioning of pipelines to avoid accidents that could result in hazardous situations, such as rupturing a gas line or damaging other utilities. Marking these pipelines gives excavators clear visual guidance on where they can safely dig or work, greatly reducing the risk of injury or disruption of service.

This approach underscores the importance of coordinating between excavators and utility owners. Proper marking and locating of underground lines are part of legal and safety protocols that help maintain public safety and operational efficiency.