Answer:
A. Political Science
Explanation:
The answer is political science because law is simply not a science. Economics has more of a focus on studying human activities so that does not fit either.
Assuming that the graph follows the normal laws of economics, the line represents supply
Bob is just a human like us and feels stuff, its probaly due to his environment and pressures/stress but heck who really knows. Bob is Bob. and that is that.
