Final answer:
According to OHSA, workplace accidents resulting in a fatality or a serious injury must be reported within eight hours.
Step-by-step explanation:
According to the Occupational Health and Safety Act (OHSA), workplace accidents resulting in a fatality or a serious injury must be reported to OHSA within eight hours. This means that options 1 and 2 must be reported within this timeframe. On the other hand, workplace accidents resulting in property damage or a minor injury do not need to be reported within eight hours.