Select the correct answer. A population's instantaneous growth rate is the rate at which it grows for every instant in time. Function r gives the instantaneous growth rate of a bacterial culture x hours after the start of an experiment. r(s) = 0.01(s + 2)(x² - 9) How many hours after the experiment began was the instantaneous growth rate equal to 0? OA. 2 О в. о Oc. 9 OD. 3

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