In a study, the population of a certain bird in an area at time t was closely approximated by the graph The derivative of the function at point a is...

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In a study, the population of a certain bird in an area at time t was closely approximated by the graph The derivative of the function at point a is approximatelybelow. Estimate the derivative at each of the marked points on the graph. (Round to the nearest integer as needed.) Interpret the derivative. Choose the correct answer below. 0 A. The population has increased by the derivative number of birds.0 B. The population has decreased by the derivative number of birds.0 C. The population has a rate increase of the derivative number of birds per unit of time.O D. The population has a rate decrease of the derivative number of birds per unit of time. The derivative of the function at point D is approximately(Round to the nearest integer as needed.) 7100 100 200 300 Interpret the derivative. Choose the correct answer below. 0 A. The population has a rate increase of the derivative number of birds per unit of time.Q B. The population has decreased by the derivative number of birds.0 C. The population has increased by the derivative number of birds.0 D. The population has a rate decrease of the derivative number of birds per unit of time.