Which statement is the most accurate paraphrase of data in the chart?
80% of thirty-year-olds in 1975 had a high school degree, and 71% earned a moderate income.
Thirty-year-olds are in worse shape than they were thirty years ago because many are still living at home.
In 1975, more thirty-year-olds were living on their own, married, and had children than thirty-year-olds in 2015.
Today, more thirty-year-olds have earned at least a high school diploma and are in the labor force.