The population of a particular country was 23 million in 1981 In 1992 it was 35 million The exponential growth function A 23ekt describes the population of this country t years after 1981 Use the fact that 11 years after 1981 the population increased by 12 million to find k to three decimal places OA 0 608 OB 0 038 OC 0 226 OD 0 048 COUP