Describe the basic differences between linear growth and exponential growth. Choose the correct answer below. OA. Linear growth occurs when a quantity grows by random amounts in each unit of time and exponential growth occurs when a quantity grows by different, but proportional amounts, in each unit of time. OB. Linear growth occurs when a quantity grows by the same absolute amount in each unit of time, and exponential growth occurs when a quantity grows by the same relative amount, that is, by the same percentage, in each unit of time. OC. Linear growth occurs when a quantity grows by the same relative amount, that is, by the same percentage, in each unit of time, and exponential growth occurs when a quantity grows by the same absolute amount in each unit of time. OD. Linear growth occurs when a quantity grows by different, but proportional amounts, in each unit of time, and exponential growth occurs when a quantity grows by random amounts in each unit of time.