Identify if the function is an exponential function. If so, identify the base and the initial value. a. Yes, it is an exponential function. Base = 1 Initial value = 5 c. Yes, it is an exponential function. Base = 4 Initial value = 2 b. Yes, it is an exponential function. Base = 4 Initial value = 5 d. No, it is not an exponential function. Please select the best answer from the choices provided