A country has 100 million people, 80 million of whom are adult non-institutionalized civilians. Of the adult non-institutionalized civilians, 25 million are not interested in working, another 5 million are interested in working but have given up looking for work, and 10 million are still looking for work. Of those who do have jobs, 10 million are working part time but would like to work full time, and the remaining 30 million are working full time. What is the unemployment rate in this country? O 30% O 12.5% O 20% O 10% 25%