In the video, you saw the equation dP =k dt P , where P is a function that measures the size of a population at time t and k is some constant. This is a differential equation, because the "unknown" is the function P(t) and the equation involves a derivative. The video focused on population growth. But this same equation can describe population decay or decrease too. With that in mind, which of the following is the best, most general interpretation of the mathematical statement % = kP? Pay careful attention to the wording of the answers! Q The population decreases at a rate that is proportional to the size of the population. Q The population changes at a rate that is indirectly proportional to the size of the population. 0 The population changes at a rate that is directly proportional to the size of the population. 0 The population grows at a rate that is proportional to the size of the population