Why did the british plan to seize control of albany, new york, in 1777?

To cut off New England from the rest of the colonies

The theory was that with both New York City and Albany in British hands, they would then control the Hudson River and separate the particularly rebellious New Englanders from the rest of the colonies. It is simply the old divide and conquer theory.

the answer is a. laws were enacted in the aftermath of the plot to make it harder to free slaves,increasing sectionalism