What is a sign of a Major vehicle accident involving serious concerns?

A major vehicle accident typically involves significant damage and serious implications, which often manifest through injuries or fatalities. When injuries or loss of life occur, it indicates that the accident was severe enough to cause harm to individuals, thus raising immediate concerns for emergency services, investigators, and the overall safety implications for those involved. This sign highlights the potential for life-threatening situations and necessitates prompt and comprehensive assessment and response from authorities.

In contrast, the other options reflect scenarios that do not align with the seriousness that characterizes a major vehicle accident. Minor vehicle damage suggests that the incident may not have been severe; no injuries reported indicates that the situation did not escalate to a critical level; and if all vehicles had minor repairs, it suggests that the accident was not significant enough to warrant serious concern. Ultimately, injuries or fatalities are definitive indicators of a serious accident that requires immediate attention and resources.