I believe this is all of the above
The correct answer is D because originally, no slaves were counted in the entire population of slave owning states. This angered states (ones like Virginia) because slaves made up a great number of the population, though they were not counted.
Answer:
Increase in police patrol presence decreases crime rates.
Explanation:
A hypothesis is a proposed explanation. In your particular question, you are providing an explanation as to why crime rates may be decreasing. So, crime rates would decrease if police patrol presence was increased.