It is D: basis of the limited government structure throughout the Constitution.
They believe a land bridge connected the two continents at that time so they could follow the animals for food.
The results of the steamboat include:
A) Decreased amount of time to ship goods- The steamboat provided a much quicker way to ship goods for businesses.
B) Decreased the price to ship goods/materials.- Before this time, shipping goods to other cities and states could be price. Thanks to the simultaneous development of steamboats and canals, the price to ship goods was significantly reduced..
Generally speaking the War Powers Resolution of 1973 negatively affected the power of the US president by making it so that the President could not commit troops beyond a certain point without Congressional approval.