I would go with a political conflict, because it came as a result of a longstanding social dilemma.
There are so little evidences of what lives were during the prehistoric era. Most of our sources come from the biological and archaeological evidences gathered by different people. However, it is quite clear that the lives of people before were entirely depending on thinking that good is rewarded by a heavenly entity. This is very different from the laws today because of our aim to be more logical in decision making, etc.
Answer:
based off of "sudden" and "surprising" I'd say D
The independent variable in the given experiment in testing the hypothesis is the pixie sticks as it could stand independently, without having to rely to another variable. The dependent variable is determining the reading speed of which this will be dependent on the independent variable in showing its effect or result.
