Which survey findings would necessitate further investigation?

The finding regarding two dead bodies in an overturned vehicle signals a severe incident that requires immediate and thorough investigation. This situation suggests a potential traffic accident with possible implications for public safety and legal accountability. The presence of deceased individuals indicates that there may be underlying issues related to road safety, driver behavior, or even potential criminal activity.

Furthermore, such incidents often affect not only the immediate victims but can have broader implications for the community, necessitating a detailed examination to understand the cause and to implement measures that may prevent similar occurrences in the future.

In contrast, the other options, while they may warrant attention, do not carry the same level of urgency or severity. Minor injuries and lost pets, while important to some extent, typically do not require the same level of investigation or resources as a case involving fatalities. The absence of communication lines during destruction is a valid issue but may pertain more to infrastructure and disaster response planning rather than needing an urgent investigation like the fatalities suggest.