What was the number one attraction bringing settlers to California, Colorado, or South Dakota during the late 1800s?

Based on the trends shown in this chart, which of the following predictions best tell about the u.s. population in 2020? (3 points) i. more than half of the u.s. population will live near an interstate highway. ii. less than one-quarter of the u.s. population will live in urban areas. iii. more than half of the u.s. population will live in suburban areas. i only iii only i and iii only ii and iii only i, ii, and iii