Answer:
Well since you haven't shared the passage it makes this hard. But you can rule out B and D because buildings and huge cities have nothing to do with agriculture. But they did practice intercropping so I would go with C.
Explanation:
The prominent issue in the American colonies was taxation without representation, although there were many other issues among those.
Think about what the question is asking in a visual. The bottom of the ladder is 11 feet away from the building. That would be the run of the slope. The top of the ladder is 19 feet above the ground. That would be the rise of the slope.
Slope =

=

Since the 19 is the rise and the 11 is the run, you can simply just plug in the numbers to find the slope. This would be:

Therefore, the slope is

.
Hope this helps! :)
The answer is D) Average summer temperatures.