The correct answer to this open question is the following.
Although there are no options attached, we can say the following.
You did not mention any specific time in history, so we are going to assume that you are referring to the present moment.
The possible environmental hazards that were involved in crossing the ocean are the following. First, the oceanic currents, then the heavy storms and the huge weaves formed during storms in the sea. Bad weather is one of the most complicated things when sailing a ship in the ocean. Then, another hazard is thunder and lighting.
All of these hazards and environmental issues can affect the technology of the ship in the middle of the ocean. Navigation systems can be affected and communication systems can malfunction.
He was president in 2001 when the twin towers were attacked by Al-Qaeda. He created the Department of Home Land Security and declared war on terrorism.
Mansa Musa inherited a kingdom that was already wealthy, but his work in expanding trade made Mali the wealthiest kingdom in Africa. His riches came from mining significant salt and gold deposits in the Mali kingdom. Elephant ivory was another major source of wealth.
It's C, because feds are for the, powerful big federal union centralized "american" national government.
This contradicts D, so it can not be D, since feds were NOT the kind of people to say. "Hey stop !!! The American government is bullying my Virginia." No virigina does not have soveringy in the eyes of feds. The USA is the powerful nation holding the states - The alliance of states is stronger than the individual power of states.
It's important to recognize that some colonists and early Americans did not see them selves as together as one. " We are not Americans as a nation, but only a region." Like Europe with all their different states and nations.
It also says all past " But if the union...." Obvious for what I think.
I’m pretty sure it’s James l