The answer to this question is most likely B or C
Laurasia was one of two supercontinents which, in turn, formed part of the supercontinent Pangea, about 335 to 175 million years ago; being the supercontinent of the north, Laurasia was formed by the primitive North America and Eurasia, taking the northern part of the modern continents as their lands. At that time, several mountain ranges arose from the collision of the contientes when they united in one, and caused, when they separated again, that North America, Europe and Asia, had similar geological formations, and similar primitive fauna and flora. Currently, the found fossils of the Mesozoic era are of the same type on both continents.
The Olive Branch Petition was their last attempt to keep peace with Britain. They ticked the king off, and now after the battle of Lexington and Concord, the king is getting scary and they want his forgiveness. The OBT was sent to tell the king that the colonists would be loyal again.
There should really be an "all of the above except B option" here... but the best one is that they "<span>fought over land use and ownership". But treaties were occasionally signed. </span>
The great migration was thought to be a better future for the African-Americans but instead it was the opposite since the bad smoking and drinking habits of the overcrowded urban life caused an increase of death between them and some of the following were the cause of mortality:
- Cardiovascular disease
- Lung cancer
- Cirrhosis