Passage: "Typhoon preparedness begins long before a storm arrives. Families are advised to prepare a go-bag containing water, food that does not need cooking, a flashlight, a whistle, medicines and copies of important documents. They should also know the evacuation centre nearest their home and the safest route to reach it. When authorities order a pre-emptive evacuation, residents of high-risk areas should leave early, while roads are still passable, rather than wait until floodwaters rise." Why should residents of high-risk areas leave early during a pre-emptive evacuation?
Correct answer: B. Because roads are still passable before floodwaters rise
The passage advises leaving "early, while roads are still passable, rather than wait until floodwaters rise". Safety on the way to the evacuation centre is the reason.
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