E) Ensuring driver safety
Without traffic laws, our roads would be complete chaos, no one would know when to turn and there would be many more accidents and car-accident related deaths.
Some of the cold water flows southward along the east coast of North America, inshore of the Gulf Stream, as far as Cape Hatteras. The remainder curves toward the east and flows along the northern<span> edge of the North Atlantic and Northeast Drift Currents, gradually merging with them.</span>
I think it's c because depression can be genetic and environmental.
hope this helps.
