Final answer:
The subject of this question is Business. The options provided do not specify the correct time frame for reporting crash events.
Step-by-step explanation:
The subject of this question is Business. The question is asking about the reporting requirements for liaisons regarding crash events.
According to the given information, liaisons are required to report all crash events into the TMC. However, the specific time frame for reporting is not mentioned in the options.
Therefore, based on the given options, it is not possible to determine the exact time frame for reporting crash events.