Final answer:
Perform an 'Emergency Stop' at a gas station when there is a fire, large gas spill, spill/fire is too large to handle, or a damaged whip hose at the dispenser.
Step-by-step explanation:
An 'Emergency Stop' at a gas station should be performed when there is a fire anywhere at the island, a large gas spill that needs to be tended to, when the spill or fire is too large to handle, or when the whip hose at the dispenser is damaged and will not stop leaking.
Therefore, the correct answer is option 5) All of the above. In these situations, it is crucial to immediately stop all operations and prioritize safety.