According to the US Census Bureau, in 1940 about 25% of the adult population over 25 had completed high school or higher. In 2017, about 90% of the adult population over 25 had a high school degree or higher. When thinking about higher levels of educational attainment in a workforce and the Aggregate Demand and Supply model, which curve(s) would this affect and in which direction? LRAS curve only, shifts to the right LRAS curve only, shifts to the left AD curve, shifts to the right SRAS curve only, shifts to the right Both LRAS and SRAS curve, shift to the right